English

    Overview

  • Dr. Sagar Bhattad is a highly skilled Paediatric Immunologist and Bone Marrow Transplant (BMT) specialist in Yelahanka. He is currently practising as the Lead Consultant – Paediatric Immunology, Rheumatology & Bone Marrow Transplant at Manipal Hospital Yelahanka, Bangalore, bringing over years of advanced clinical expertise in treating complex immune disorders, autoimmune diseases, rheumatic conditions, and paediatric bone marrow transplants. Recognised as one of the best paediatric immunologists in Yelahanka, he has pioneered specialised care for children with Primary Immune Deficiency Disorders (PIDs), juvenile arthritis, Kawasaki disease, paediatric lupus, autoinflammatory conditions, and bone marrow failure syndromes through evidence-based clinical practice, compassionate care, and global-standard transplant programs.

  • A trailblazer in his field, Dr. Bhattad is India’s first DM super-specialist in Paediatric Clinical Immunology and Rheumatology, trained at the prestigious Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. During his academic tenure, he received the Silver Medal in MD Paediatrics and the distinguished Major Gen Amir Chand Gold Medal for his groundbreaking research in pediatric lupus, highlighting his early contributions to clinical immunology. To further enhance his expertise, he trained at Europe’s largest Paediatric Immune Deficiency Transplant Centre, the Great North Children’s Hospital, Newcastle, UK, where he gained hands-on experience in advanced BMT methodologies, immune reconstitution, graft-versus-host disease management, and post-transplant rehabilitation. His global exposure strengthened his capabilities in performing complex bone marrow transplants for immunodeficiency syndromes, leukemias, rheumatic diseases with immune complications, and rare genetic disorders.

  • At Manipal Hospital Yelahanka, Dr. Bhattad established and leads the Centre of Excellence in Paediatric Immunology and Bone Marrow Transplant, which is among the region’s most specialised and trusted centres for childhood immune disorders. He has successfully diagnosed over 600 cases of Primary Immune Deficiency Disorders and performed multiple successful bone marrow transplants, significantly improving survival outcomes and enhancing access to specialized care for children. As one of the best paediatric immunologists in Yelahanka, he is revered by families and colleagues for his thorough clinical judgement, deep understanding of rare diseases, and empathetic approach to children requiring long-term, multidisciplinary medical care.

  • His areas of expertise span a wide spectrum, including Primary Immune Deficiency disorders, paediatric rheumatology, auto-inflammatory diseases, Kawasaki disease, systemic lupus erythematosus (SLE), juvenile idiopathic arthritis, recurrent infections, periodic fever syndromes, and paediatric transplant immunology. He is also an expert in haploidentical bone marrow transplants, stem cell transplants for genetic immunodeficiencies, post-transplant immune monitoring, and personalised immunomodulatory therapies. His advanced knowledge and precision-based treatment protocols help reduce complications, improve quality of life, and enhance long-term outcomes for children with complex immunological conditions.

  • Dedicated to academic excellence, Dr. Bhattad has authored over 80 peer-reviewed research publications in globally recognised journals such as Journal of Clinical Immunology, Clinical and Experimental Rheumatology, International Journal of Rheumatic Diseases, Indian Pediatrics, and many others. He is the author of the widely acclaimed book “Primary Immune Deficiencies Made Simple”, which has become a valuable guide for paediatricians and residents for clinical diagnosis and early detection of PID cases. His ongoing mission is to increase awareness, improve early diagnosis, and expand access to advanced immunology-based healthcare in India. He continues to mentor young doctors, actively speak at national and international forums, and contribute to clinical guidelines and evolving medical literature.

  • A proud member of elite national and international medical associations, including the European Society of BMT (EBMT), APSID, ISPID, PRSI, and the Indian Rheumatology Association, Dr. Bhattad remains closely aligned with global research and evolving treatment protocols. He is admired for his compassionate consultations, detailed diagnostic clarity, and supportive counselling to families navigating complex treatment decisions for their children.

  • With his vision to develop South India’s most advanced pediatric immunology centre, his clinical excellence, and his strong commitment to delivering compassionate and accessible care, Dr. Sagar Bhattad continues to be one of the best paediatric immunologists in Yelahanka, transforming paediatric care with innovation, dedication, and empathy.

    • Field of Expertise

  • Bone Marrow Transplant
  • Primary Immune Deficiency disorders/Inborn Errors of Immunity
  • Kawasaki disease
  • Juvenile Arthritis
  • Pediatric lupus
  • Rheumatic diseases in children and adolescents
  • Auto-inflammatory diseases

    • Fellowship & Membership

  • Fellowship in BMT, European Society of BMT Certified (EBMT Diploma), European Society of Blood and Marrow Transplantation (EBMT)
  • Asia Pacific Society for Immunodeficiencies (APSID)
  • Indian Society for Primary Immune Deficiency (ISPID)
  • Indian Society for Kawasaki Disease (ISKD)
  • Pediatric Rheumatology Society of India (PRSI)
  • Indian Academy of Paediatrics (IAP)
  • Indian Rheumatology Association (IRA)

    • Languages Spoken

  • English
  • Kannada
  • Hindi

    • Awards & Achievements

  • Silver Medal for MD Paediatrics, PGIMER, Chandigarh
  • Major Gen Amir Chand Gold Medal for research in Pediatric SLE
  • Moopens’ Clinical Excellence Award, 2025

    • Talks & Publications

  • Authored a book, Primary Immune Deficiencies Made Simple: This book presents a clinical approach to diagnosis to various Primary Immunodeficiency diseases. It has been well acknowledged by the pediatric fraternity and medical residents for its simplicity of presentation and its utility in day-to-day practice. As a result of heightened awareness, many children are now being timely diagnosed and treated.
  • Bhattad S et al. Successful Haploidentical Transplant Using Post-Transplant Cyclophosphamide in a Child with Chronic Granulomatous Disease-First Report from the Indian Subcontinent. J Clin Immunol. 2021 May;41(4):820-824.
  • Bhattad S, Dinakar C, Pinnamaraju H, Ganapathy A, Mannan A. Chronic Mucocutaneous Candidiasis in an Adolescent Boy Due to a Novel Mutation in TRAF3IP2. J Clin Immunol. 2019; 39(6):596-599.
  • Bhattad S, Rawat A, Gupta A, Suri D, Garg R, de Boer M, Kuijpers TW, Singh S. Early Complement Component Deficiency in a Single-Centre Cohort of Pediatric Onset Lupus. J Clin Immunol. 2015 Nov;35(8):777-85.
  • Bhattad S, Unni J, Varkey S. MSMD in a 3-Generation Multiplex Kindred Due to Autosomal Dominant STAT1 Deficiency. J Clin Immunol. 2021 Jan;41(1):259-261.
  • Singh S, Bhattad S, Danda D. Genetics of juvenile idiopathic arthritis. Int J Rheum Dis 2014 Mar;17(3):233-6.
  • Saini AG, Sankhyan N, Bhattad S, Vyas S, Saikia B, Singhi P. CNS vasculitis and stroke in neonatal lupus erythematosus: a case report and review of the literature. Eur J Paediatr Neurol 2014 May;18(3):444-8.
  • Singh S, Bhattad S. Advances in pediatric rheumatology April 2013–March 2014. Int J Rheum Dis 2014 Jun; 17(5): 593-4.
  • Bhattad S, Rawat A, Suri D, Gupta A, Saikia B, Minz RW, Sodhi KS, Singh S. Budd-Chiari syndrome in a child with leukocyte adhesion deficiency - a rare association"". Pediatr Blood and Cancer 2015;62(12):2244.
  • Singh S, Bhattad S. Recent advances in pediatric rheumatology. Int J Rheum Dis 2015 Jun;18(5):568-9.
  • Sharma P, Arthi N, Bhattad S, Vaiphei K. Cystic fibrosis in a retro-positive child. Indian J Pathol Microbiol 2015 Apr-Jun;58(2):204-10.
  • Bhattad S, Gupta A, Suri D, Sharma D, Sinha A, Singh S. Piriformis syndrome in a young child – an unusual clinical entity. Indian J Pediatr 2015 Aug 21.
  • Singh S, Bhattad S, Gupta A, Suri D, Rawat A, Rohit M. Mortality in children with Kawasaki disease: 20 years of experience from a tertiary care center in North India. Clin Exp Rheumatol 2015 Nov 17.
  • Singh S, Bhattad S, Sharma D, Philip S. Recent Advances in Kawasaki Disease - Proceedings of the 3rd Kawasaki Disease Summit, Chandigarh, 2014. Indian J Pediatr.2015 Aug 30.
  • Sharma A, Gupta A, Mitra S, Nada R, Bhattad S, Singh S. Systemic Juvenile Idiopathic Arthritis with Amyloidosis: An uncommon complication with a favorable outcome. Indian J Pediatr 2015 Oct 7.
  • Rawat A, Bhattad S, Singh S. Chronic Granulomatous Disease. Indian J Pediatr. 2016 Feb 11.
  • Bhattad S, Vignesh P, Rawat A, Suri D, Gupta A, Vyas S, Singh S. Spondylodiscitis in a Boy with X-linked Agammaglobulinemia: an Unusual Occurrence. J Clin Immunol. 2016 Mar 10.
  • Singh S, Agarwal S, Bhattad S, Gupta A, Suri D, Rawat A, Singhal M, Rohit M. Kawasaki disease in infants below 6 months: a clinical conundrum? Int J Rheum Dis. 2016 Mar 16.
  • Vignesh P, Bhattad S, Singhal M, Singh S. A 5-year-old boy with only fever and giant coronary aneurysms: the enigma of Kawasaki disease? Rheumatol Int. 2016 May 6.
  • Vignesh P, Bhattad S, Shandilya JK, Vyas S, Garg R, Rawat A. Vertebral Osteomyelitis and Acinetobacter Spp. Paravertebral Soft Tissue Infection in a 4-Year-Old Boy with X-Linked Chronic Granulomatous Disease. Pediatr Infect Dis J. 2016 May 12.
  • Sharma A, Bhattad S, Kumar P. Prevalence of hypertension & prehypertension among school children. Indian J Med Res. 2016 Mar;143(3):376
  • Suri D, Sharma A, Bhattad S, Rawat A, Arora S, Minz RW, Singh S. Arthritis in childhood human immunodeficiency virus infection predominantly associated with human leukocyte antigen B27. Int J Rheum Dis. 2016 Jul 26.
  • Singh S, Bhattad S. Kawasaki disease incidence at Chandigarh, North India, during 2009-2014. Rheumatol Int. 2016 Aug 4. [Epub ahead of print]
  • Suri D, Bhattad S, Gupta A, Trehan A, Bansal D, Rajwanshi A, Das A, Rawat A, Singh S. Malignancies in Children with Human Immunodeficiency Virus Infection - Our Experience at Chandigarh, North India. J Trop Pediatr. 2017; 63(3):210-216.
  • Nada R, Matthews JL, Bhattad S, Gupta A, Singh S. Necrotizing Polyarteritis Nodosa-like Vasculitis in a Child with Systemic Lupus Erythematosus. Indian Pediatr. 2017;54(2):139-144.
  • Suri D, Bhattad S, Sharma A, Gupta A, Rawat A, Sehgal S, Singh S, Gupta S. Serial serum immunoglobulin (IgG) trough levels in patients with X-linked Agammaglobulinemia on replacement therapy with intravenous immunoglobulin: its Correlation with Infections in Indian Children. J Clin Immunol. 2017;37(3):311-318.
  • Vijayvergiya R, Bhattad S, Varma S, Singhal M, Gordon J, Singh S. Presentation of missed childhood Kawasaki disease in adults: Experience from a tertiary care center in north India. Int J Rheum Dis. 2017; 20(8):1023-1027
  • H Vinayak, Sujith Kumar T, GV Basavaraj, Bhattad S. Bilateral extensive CMV retinitis in a sick child – harbinger of severe combined immunodeficiency. JPCC 2017.
  • Rawat A, Sharma M, Bhattad S, Suri D, Gupta A, et al. C1QA gene mutations in a pediatric SLE cohort from North India, Molecular Immunology, Volume 89, 2017, Page 117, ISSN 0161-5890, https://doi.org/10.1016/j.molimm.2017.06.044.
  • Jindal AK, Bhattad S, Suri D, Singhal M, Gupta A, Singh P. Moyamoya Syndrome in a Child with HIV-1 Infection. Pediatr Infect Dis J. 2018 Jun;37(6).
  • Chari PS, Chandra P, Prasad S, Bhattad S. Chronic granulomatous disease presenting with small bone osteomyelitis in a young child: A case report. Indian J Pathol Microbiol. 2018 Oct-Dec;61(4):557-560.
  • Rikhi R, Bhattad S, Jindal A, Saikia B, Garg R, Rawat A, Suri D, Singh S. Monoclonal Gammopathy of Unclear Significance in a Child with Wiskott-Aldrich Syndrome: a Rare Occurrence. J Clin Immunol. 2019; 39(1):7-10.
  • Bhattad S. Mendelian Susceptibility to Mycobacterial Disease: A Clinical and Laboratory Approach. Ped Inf Dis. 2019; 1(1):34-36
  • Bhattad S. Primary Immune Deficiency. Pediatr Inf Dis.2019;1(2):68-69.
  • Bhattad S. “When to Suspect Primary Immune Deficiency in Office Practice?”. Acta Scientific Paediatrics. 2019; 10 (2): 128-130.
  • Raj E, Zainab S, Bhattad S, Ginigeri C, D Mahesh. Nutritional Challenges and Management in DiGeorge Syndrome. Acta Scientific Nutritional Health. 2019; 12 (3): 73-77.
  • Bhattad S. Lymphopenia and Immune Deficiency: Eyes See Only What the Mind Knows! Pediatr Inf Dis 2019;1(4):169–170.
  • Bhattad S. Neutrophil Counts—Too Less and Too Many—Both Can Be Immune Deficiency. Pediatr Inf Dis 2019;1(3):120–122.
  • Shinde S, Chinnappa J, Shenoy B, Kaur T, Bhattad S. Think out of the box! Pediatric onset adult Sarcoidosis in a young child presenting as Pyrexia of unknown origin. Int J Clin Rheumatol. 2020; 15(4): 131-132.
  • Bhattad S. B-cell Defects: A Clinical and Immunological Approach. Pediatr Inf Dis 2020;2(1):36–38.
  • Shenoy B, Singh S, Ahmed MZ, Pal P, Balan S, Viswanathan V, Bhattad S, Rao AP, Chaudhuri M, Shastri DD, Soans ST. Indian Academy of Pediatrics Position Paper on Kawasaki Disease. Indian Pediatr. 2020 Nov 15;57(11):1040-1048.
  • Sharma A, Naidu G, Sharma V, Jha S, Dhooria A, Dhir V, Bhatia P, Sharma V, Bhattad S, et al. Deficiency of Adenosine Deaminase 2 in Adults and Children: Experience From India. Arthritis Rheumatol. 2020 Sep 6.
  • Yadav RM, Gupta M, Dalvi A, Bargir UA, Hule G, Bhattad S, et al. Prenatal Diagnosis for Primary Immunodeficiency Disorders-An Overview of the Indian Scenario. Front Immunol. 2020 Dec 7;11: 612316.
  • Kambli PM, Bargir UA, Yadav RM, Gupta MR, Dalvi AD, Bhattad S, Ramprakash S, Cp Raghuram et al. Clinical and Genetic Spectrum of a Large Cohort of Patients With Leukocyte Adhesion Deficiency Type 1 and 3: A Multicentric Study From India. Front Immunol. 2020 Dec 16;11:612703.
  • Rawat A, Jindal AK, Suri D, Pandiarajan V, Gupta Anju, Saikia Biman, Bhattad S, et al. Clinical and Genetic Profile of X-Linked Agammaglobulinemia: A Multicenter Experience From India. Front Immunol. 2021 Jan 15; 11: 612323.
  • Vignesh P, Rawat A, Kumrah R, Singh A, Bhattad S, Ramprakash S, CP Raghuram, et al. Clinical, immunological and molecular features of Severe Combined Immune Deficiency: A multi-institutional experience from India. Front Immunol. (Provisionally accepted).
  • Rawat A, Vignesh P, Sudhakar M, Bhattad S, Ginigeri C, Kumar H, et al. Clinical, immunological and molecular profile of Chronic granulomatous disease: A multi-centric study of 236 patients from India. Front Immunol. (Provisionally accepted).
  • Saikia B, Rawat A, Minz RW, Suri D, Pandiarajan V, Jindal A, Bhattad S, et al. Clinical Profile of Hyper-IgE Syndrome in India. Front Immunol. 2021 Feb 26;12:626593.
  • Suri D, Rikhi R, Jindal AK, Rawat A, Sudhakar M, Vignesh P, Bhattad S, et al. Wiskott Aldrich Syndrome: A Multi-Institutional Experience From India. Front Immunol. 2021 Apr 16;12:627651.
  • Suri D, Rawat A, Jindal AK, Vignesh P, Gupta A, Pilania RK, Bhattad S, et al. Spectrum of Systemic Auto-Inflammatory Diseases in India: A Multi-Centric Experience. Front Immunol. 2021 Mar 19;12:630691.
  • Taur PD, Gowri V, Pandrowala AA, Iyengar VV, Chougule A, Golwala Z, , Bhattad S, et al. Clinical and Molecular Findings in Mendelian Susceptibility to Mycobacterial Diseases: Experience From India. Front Immunol. 2021 Feb 25;12:631298.
  • Bhattad S, Gupta S, Israni N, Mohanty S. Profile of Kawasaki disease at a tertiary care center in India. Ann Pediatr Cardiol. 2021 Apr-Jun;14(2):187-191.
  • Jindal AK, Patra P, Guleria S, Gupta A, Bhattad S, Rawat A, Suri D, Pandiarajan V, Bishnoi A, Dogra S, Singh S. Clinical profile, long-term follow-up and outcome of juvenile systemic scleroderma: 25 years of clinical experience from North-West India. Clin Exp Rheumatol. 2021 Jul-Aug;39 Suppl 131(4):149-156.
  • Mohite RS, Kotecha U, Bhattad S. Familial Cold Autoinflammatory Syndrome Type 1. Indian J Pediatr. 2021 Aug;88(8):834.
  • Joseph R, Mohite RS, Ginigeri C, Kumar H, Ka Sudheer, Bhattad S. Hypogammaglobulinemia and periodic fevers – Think of TRNT1 deficiency! Pediatr Hematol Oncol Journal,2021, ISSN 24681245,https://doi.org/10.1016/j.phoj.2021.06.002.

    Fellowship & Membership

  • Fellowship in BMT, European Society of BMT Certified (EBMT Diploma), European Society of Blood and Marrow Transplantation (EBMT)
  • Asia Pacific Society for Immunodeficiencies (APSID)
  • Indian Society for Primary Immune Deficiency (ISPID)
  • Indian Society for Kawasaki Disease (ISKD)
  • Pediatric Rheumatology Society of India (PRSI)
  • Indian Academy of Paediatrics (IAP)
  • Indian Rheumatology Association (IRA)

    • Overview

  • Dr. Sagar Bhattad is a highly skilled Paediatric Immunologist and Bone Marrow Transplant (BMT) specialist in Yelahanka. He is currently practising as the Lead Consultant – Paediatric Immunology, Rheumatology & Bone Marrow Transplant at Manipal Hospital Yelahanka, Bangalore, bringing over years of advanced clinical expertise in treating complex immune disorders, autoimmune diseases, rheumatic conditions, and paediatric bone marrow transplants. Recognised as one of the best paediatric immunologists in Yelahanka, he has pioneered specialised care for children with Primary Immune Deficiency Disorders (PIDs), juvenile arthritis, Kawasaki disease, paediatric lupus, autoinflammatory conditions, and bone marrow failure syndromes through evidence-based clinical practice, compassionate care, and global-standard transplant programs.

  • A trailblazer in his field, Dr. Bhattad is India’s first DM super-specialist in Paediatric Clinical Immunology and Rheumatology, trained at the prestigious Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. During his academic tenure, he received the Silver Medal in MD Paediatrics and the distinguished Major Gen Amir Chand Gold Medal for his groundbreaking research in pediatric lupus, highlighting his early contributions to clinical immunology. To further enhance his expertise, he trained at Europe’s largest Paediatric Immune Deficiency Transplant Centre, the Great North Children’s Hospital, Newcastle, UK, where he gained hands-on experience in advanced BMT methodologies, immune reconstitution, graft-versus-host disease management, and post-transplant rehabilitation. His global exposure strengthened his capabilities in performing complex bone marrow transplants for immunodeficiency syndromes, leukemias, rheumatic diseases with immune complications, and rare genetic disorders.

  • At Manipal Hospital Yelahanka, Dr. Bhattad established and leads the Centre of Excellence in Paediatric Immunology and Bone Marrow Transplant, which is among the region’s most specialised and trusted centres for childhood immune disorders. He has successfully diagnosed over 600 cases of Primary Immune Deficiency Disorders and performed multiple successful bone marrow transplants, significantly improving survival outcomes and enhancing access to specialized care for children. As one of the best paediatric immunologists in Yelahanka, he is revered by families and colleagues for his thorough clinical judgement, deep understanding of rare diseases, and empathetic approach to children requiring long-term, multidisciplinary medical care.

  • His areas of expertise span a wide spectrum, including Primary Immune Deficiency disorders, paediatric rheumatology, auto-inflammatory diseases, Kawasaki disease, systemic lupus erythematosus (SLE), juvenile idiopathic arthritis, recurrent infections, periodic fever syndromes, and paediatric transplant immunology. He is also an expert in haploidentical bone marrow transplants, stem cell transplants for genetic immunodeficiencies, post-transplant immune monitoring, and personalised immunomodulatory therapies. His advanced knowledge and precision-based treatment protocols help reduce complications, improve quality of life, and enhance long-term outcomes for children with complex immunological conditions.

  • Dedicated to academic excellence, Dr. Bhattad has authored over 80 peer-reviewed research publications in globally recognised journals such as Journal of Clinical Immunology, Clinical and Experimental Rheumatology, International Journal of Rheumatic Diseases, Indian Pediatrics, and many others. He is the author of the widely acclaimed book “Primary Immune Deficiencies Made Simple”, which has become a valuable guide for paediatricians and residents for clinical diagnosis and early detection of PID cases. His ongoing mission is to increase awareness, improve early diagnosis, and expand access to advanced immunology-based healthcare in India. He continues to mentor young doctors, actively speak at national and international forums, and contribute to clinical guidelines and evolving medical literature.

  • A proud member of elite national and international medical associations, including the European Society of BMT (EBMT), APSID, ISPID, PRSI, and the Indian Rheumatology Association, Dr. Bhattad remains closely aligned with global research and evolving treatment protocols. He is admired for his compassionate consultations, detailed diagnostic clarity, and supportive counselling to families navigating complex treatment decisions for their children.

  • With his vision to develop South India’s most advanced pediatric immunology centre, his clinical excellence, and his strong commitment to delivering compassionate and accessible care, Dr. Sagar Bhattad continues to be one of the best paediatric immunologists in Yelahanka, transforming paediatric care with innovation, dedication, and empathy.

    • Field of Expertise

  • Bone Marrow Transplant
  • Primary Immune Deficiency disorders/Inborn Errors of Immunity
  • Kawasaki disease
  • Juvenile Arthritis
  • Pediatric lupus
  • Rheumatic diseases in children and adolescents
  • Auto-inflammatory diseases

    • Languages Spoken

  • English
  • Kannada
  • Hindi

    • Awards & Achievements

  • Silver Medal for MD Paediatrics, PGIMER, Chandigarh
  • Major Gen Amir Chand Gold Medal for research in Pediatric SLE
  • Moopens’ Clinical Excellence Award, 2025

    • Talks & Publications

  • Authored a book, Primary Immune Deficiencies Made Simple: This book presents a clinical approach to diagnosis to various Primary Immunodeficiency diseases. It has been well acknowledged by the pediatric fraternity and medical residents for its simplicity of presentation and its utility in day-to-day practice. As a result of heightened awareness, many children are now being timely diagnosed and treated.
  • Bhattad S et al. Successful Haploidentical Transplant Using Post-Transplant Cyclophosphamide in a Child with Chronic Granulomatous Disease-First Report from the Indian Subcontinent. J Clin Immunol. 2021 May;41(4):820-824.
  • Bhattad S, Dinakar C, Pinnamaraju H, Ganapathy A, Mannan A. Chronic Mucocutaneous Candidiasis in an Adolescent Boy Due to a Novel Mutation in TRAF3IP2. J Clin Immunol. 2019; 39(6):596-599.
  • Bhattad S, Rawat A, Gupta A, Suri D, Garg R, de Boer M, Kuijpers TW, Singh S. Early Complement Component Deficiency in a Single-Centre Cohort of Pediatric Onset Lupus. J Clin Immunol. 2015 Nov;35(8):777-85.
  • Bhattad S, Unni J, Varkey S. MSMD in a 3-Generation Multiplex Kindred Due to Autosomal Dominant STAT1 Deficiency. J Clin Immunol. 2021 Jan;41(1):259-261.
  • Singh S, Bhattad S, Danda D. Genetics of juvenile idiopathic arthritis. Int J Rheum Dis 2014 Mar;17(3):233-6.
  • Saini AG, Sankhyan N, Bhattad S, Vyas S, Saikia B, Singhi P. CNS vasculitis and stroke in neonatal lupus erythematosus: a case report and review of the literature. Eur J Paediatr Neurol 2014 May;18(3):444-8.
  • Singh S, Bhattad S. Advances in pediatric rheumatology April 2013–March 2014. Int J Rheum Dis 2014 Jun; 17(5): 593-4.
  • Bhattad S, Rawat A, Suri D, Gupta A, Saikia B, Minz RW, Sodhi KS, Singh S. Budd-Chiari syndrome in a child with leukocyte adhesion deficiency - a rare association"". Pediatr Blood and Cancer 2015;62(12):2244.
  • Singh S, Bhattad S. Recent advances in pediatric rheumatology. Int J Rheum Dis 2015 Jun;18(5):568-9.
  • Sharma P, Arthi N, Bhattad S, Vaiphei K. Cystic fibrosis in a retro-positive child. Indian J Pathol Microbiol 2015 Apr-Jun;58(2):204-10.
  • Bhattad S, Gupta A, Suri D, Sharma D, Sinha A, Singh S. Piriformis syndrome in a young child – an unusual clinical entity. Indian J Pediatr 2015 Aug 21.
  • Singh S, Bhattad S, Gupta A, Suri D, Rawat A, Rohit M. Mortality in children with Kawasaki disease: 20 years of experience from a tertiary care center in North India. Clin Exp Rheumatol 2015 Nov 17.
  • Singh S, Bhattad S, Sharma D, Philip S. Recent Advances in Kawasaki Disease - Proceedings of the 3rd Kawasaki Disease Summit, Chandigarh, 2014. Indian J Pediatr.2015 Aug 30.
  • Sharma A, Gupta A, Mitra S, Nada R, Bhattad S, Singh S. Systemic Juvenile Idiopathic Arthritis with Amyloidosis: An uncommon complication with a favorable outcome. Indian J Pediatr 2015 Oct 7.
  • Rawat A, Bhattad S, Singh S. Chronic Granulomatous Disease. Indian J Pediatr. 2016 Feb 11.
  • Bhattad S, Vignesh P, Rawat A, Suri D, Gupta A, Vyas S, Singh S. Spondylodiscitis in a Boy with X-linked Agammaglobulinemia: an Unusual Occurrence. J Clin Immunol. 2016 Mar 10.
  • Singh S, Agarwal S, Bhattad S, Gupta A, Suri D, Rawat A, Singhal M, Rohit M. Kawasaki disease in infants below 6 months: a clinical conundrum? Int J Rheum Dis. 2016 Mar 16.
  • Vignesh P, Bhattad S, Singhal M, Singh S. A 5-year-old boy with only fever and giant coronary aneurysms: the enigma of Kawasaki disease? Rheumatol Int. 2016 May 6.
  • Vignesh P, Bhattad S, Shandilya JK, Vyas S, Garg R, Rawat A. Vertebral Osteomyelitis and Acinetobacter Spp. Paravertebral Soft Tissue Infection in a 4-Year-Old Boy with X-Linked Chronic Granulomatous Disease. Pediatr Infect Dis J. 2016 May 12.
  • Sharma A, Bhattad S, Kumar P. Prevalence of hypertension & prehypertension among school children. Indian J Med Res. 2016 Mar;143(3):376
  • Suri D, Sharma A, Bhattad S, Rawat A, Arora S, Minz RW, Singh S. Arthritis in childhood human immunodeficiency virus infection predominantly associated with human leukocyte antigen B27. Int J Rheum Dis. 2016 Jul 26.
  • Singh S, Bhattad S. Kawasaki disease incidence at Chandigarh, North India, during 2009-2014. Rheumatol Int. 2016 Aug 4. [Epub ahead of print]
  • Suri D, Bhattad S, Gupta A, Trehan A, Bansal D, Rajwanshi A, Das A, Rawat A, Singh S. Malignancies in Children with Human Immunodeficiency Virus Infection - Our Experience at Chandigarh, North India. J Trop Pediatr. 2017; 63(3):210-216.
  • Nada R, Matthews JL, Bhattad S, Gupta A, Singh S. Necrotizing Polyarteritis Nodosa-like Vasculitis in a Child with Systemic Lupus Erythematosus. Indian Pediatr. 2017;54(2):139-144.
  • Suri D, Bhattad S, Sharma A, Gupta A, Rawat A, Sehgal S, Singh S, Gupta S. Serial serum immunoglobulin (IgG) trough levels in patients with X-linked Agammaglobulinemia on replacement therapy with intravenous immunoglobulin: its Correlation with Infections in Indian Children. J Clin Immunol. 2017;37(3):311-318.
  • Vijayvergiya R, Bhattad S, Varma S, Singhal M, Gordon J, Singh S. Presentation of missed childhood Kawasaki disease in adults: Experience from a tertiary care center in north India. Int J Rheum Dis. 2017; 20(8):1023-1027
  • H Vinayak, Sujith Kumar T, GV Basavaraj, Bhattad S. Bilateral extensive CMV retinitis in a sick child – harbinger of severe combined immunodeficiency. JPCC 2017.
  • Rawat A, Sharma M, Bhattad S, Suri D, Gupta A, et al. C1QA gene mutations in a pediatric SLE cohort from North India, Molecular Immunology, Volume 89, 2017, Page 117, ISSN 0161-5890, https://doi.org/10.1016/j.molimm.2017.06.044.
  • Jindal AK, Bhattad S, Suri D, Singhal M, Gupta A, Singh P. Moyamoya Syndrome in a Child with HIV-1 Infection. Pediatr Infect Dis J. 2018 Jun;37(6).
  • Chari PS, Chandra P, Prasad S, Bhattad S. Chronic granulomatous disease presenting with small bone osteomyelitis in a young child: A case report. Indian J Pathol Microbiol. 2018 Oct-Dec;61(4):557-560.
  • Rikhi R, Bhattad S, Jindal A, Saikia B, Garg R, Rawat A, Suri D, Singh S. Monoclonal Gammopathy of Unclear Significance in a Child with Wiskott-Aldrich Syndrome: a Rare Occurrence. J Clin Immunol. 2019; 39(1):7-10.
  • Bhattad S. Mendelian Susceptibility to Mycobacterial Disease: A Clinical and Laboratory Approach. Ped Inf Dis. 2019; 1(1):34-36
  • Bhattad S. Primary Immune Deficiency. Pediatr Inf Dis.2019;1(2):68-69.
  • Bhattad S. “When to Suspect Primary Immune Deficiency in Office Practice?”. Acta Scientific Paediatrics. 2019; 10 (2): 128-130.
  • Raj E, Zainab S, Bhattad S, Ginigeri C, D Mahesh. Nutritional Challenges and Management in DiGeorge Syndrome. Acta Scientific Nutritional Health. 2019; 12 (3): 73-77.
  • Bhattad S. Lymphopenia and Immune Deficiency: Eyes See Only What the Mind Knows! Pediatr Inf Dis 2019;1(4):169–170.
  • Bhattad S. Neutrophil Counts—Too Less and Too Many—Both Can Be Immune Deficiency. Pediatr Inf Dis 2019;1(3):120–122.
  • Shinde S, Chinnappa J, Shenoy B, Kaur T, Bhattad S. Think out of the box! Pediatric onset adult Sarcoidosis in a young child presenting as Pyrexia of unknown origin. Int J Clin Rheumatol. 2020; 15(4): 131-132.
  • Bhattad S. B-cell Defects: A Clinical and Immunological Approach. Pediatr Inf Dis 2020;2(1):36–38.
  • Shenoy B, Singh S, Ahmed MZ, Pal P, Balan S, Viswanathan V, Bhattad S, Rao AP, Chaudhuri M, Shastri DD, Soans ST. Indian Academy of Pediatrics Position Paper on Kawasaki Disease. Indian Pediatr. 2020 Nov 15;57(11):1040-1048.
  • Sharma A, Naidu G, Sharma V, Jha S, Dhooria A, Dhir V, Bhatia P, Sharma V, Bhattad S, et al. Deficiency of Adenosine Deaminase 2 in Adults and Children: Experience From India. Arthritis Rheumatol. 2020 Sep 6.
  • Yadav RM, Gupta M, Dalvi A, Bargir UA, Hule G, Bhattad S, et al. Prenatal Diagnosis for Primary Immunodeficiency Disorders-An Overview of the Indian Scenario. Front Immunol. 2020 Dec 7;11: 612316.
  • Kambli PM, Bargir UA, Yadav RM, Gupta MR, Dalvi AD, Bhattad S, Ramprakash S, Cp Raghuram et al. Clinical and Genetic Spectrum of a Large Cohort of Patients With Leukocyte Adhesion Deficiency Type 1 and 3: A Multicentric Study From India. Front Immunol. 2020 Dec 16;11:612703.
  • Rawat A, Jindal AK, Suri D, Pandiarajan V, Gupta Anju, Saikia Biman, Bhattad S, et al. Clinical and Genetic Profile of X-Linked Agammaglobulinemia: A Multicenter Experience From India. Front Immunol. 2021 Jan 15; 11: 612323.
  • Vignesh P, Rawat A, Kumrah R, Singh A, Bhattad S, Ramprakash S, CP Raghuram, et al. Clinical, immunological and molecular features of Severe Combined Immune Deficiency: A multi-institutional experience from India. Front Immunol. (Provisionally accepted).
  • Rawat A, Vignesh P, Sudhakar M, Bhattad S, Ginigeri C, Kumar H, et al. Clinical, immunological and molecular profile of Chronic granulomatous disease: A multi-centric study of 236 patients from India. Front Immunol. (Provisionally accepted).
  • Saikia B, Rawat A, Minz RW, Suri D, Pandiarajan V, Jindal A, Bhattad S, et al. Clinical Profile of Hyper-IgE Syndrome in India. Front Immunol. 2021 Feb 26;12:626593.
  • Suri D, Rikhi R, Jindal AK, Rawat A, Sudhakar M, Vignesh P, Bhattad S, et al. Wiskott Aldrich Syndrome: A Multi-Institutional Experience From India. Front Immunol. 2021 Apr 16;12:627651.
  • Suri D, Rawat A, Jindal AK, Vignesh P, Gupta A, Pilania RK, Bhattad S, et al. Spectrum of Systemic Auto-Inflammatory Diseases in India: A Multi-Centric Experience. Front Immunol. 2021 Mar 19;12:630691.
  • Taur PD, Gowri V, Pandrowala AA, Iyengar VV, Chougule A, Golwala Z, , Bhattad S, et al. Clinical and Molecular Findings in Mendelian Susceptibility to Mycobacterial Diseases: Experience From India. Front Immunol. 2021 Feb 25;12:631298.
  • Bhattad S, Gupta S, Israni N, Mohanty S. Profile of Kawasaki disease at a tertiary care center in India. Ann Pediatr Cardiol. 2021 Apr-Jun;14(2):187-191.
  • Jindal AK, Patra P, Guleria S, Gupta A, Bhattad S, Rawat A, Suri D, Pandiarajan V, Bishnoi A, Dogra S, Singh S. Clinical profile, long-term follow-up and outcome of juvenile systemic scleroderma: 25 years of clinical experience from North-West India. Clin Exp Rheumatol. 2021 Jul-Aug;39 Suppl 131(4):149-156.
  • Mohite RS, Kotecha U, Bhattad S. Familial Cold Autoinflammatory Syndrome Type 1. Indian J Pediatr. 2021 Aug;88(8):834.
  • Joseph R, Mohite RS, Ginigeri C, Kumar H, Ka Sudheer, Bhattad S. Hypogammaglobulinemia and periodic fevers – Think of TRNT1 deficiency! Pediatr Hematol Oncol Journal,2021, ISSN 24681245,https://doi.org/10.1016/j.phoj.2021.06.002.

    Languages Spoken

  • English
  • Kannada
  • Hindi

    • Overview

  • Dr. Sagar Bhattad is a highly skilled Paediatric Immunologist and Bone Marrow Transplant (BMT) specialist in Yelahanka. He is currently practising as the Lead Consultant – Paediatric Immunology, Rheumatology & Bone Marrow Transplant at Manipal Hospital Yelahanka, Bangalore, bringing over years of advanced clinical expertise in treating complex immune disorders, autoimmune diseases, rheumatic conditions, and paediatric bone marrow transplants. Recognised as one of the best paediatric immunologists in Yelahanka, he has pioneered specialised care for children with Primary Immune Deficiency Disorders (PIDs), juvenile arthritis, Kawasaki disease, paediatric lupus, autoinflammatory conditions, and bone marrow failure syndromes through evidence-based clinical practice, compassionate care, and global-standard transplant programs.

  • A trailblazer in his field, Dr. Bhattad is India’s first DM super-specialist in Paediatric Clinical Immunology and Rheumatology, trained at the prestigious Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. During his academic tenure, he received the Silver Medal in MD Paediatrics and the distinguished Major Gen Amir Chand Gold Medal for his groundbreaking research in pediatric lupus, highlighting his early contributions to clinical immunology. To further enhance his expertise, he trained at Europe’s largest Paediatric Immune Deficiency Transplant Centre, the Great North Children’s Hospital, Newcastle, UK, where he gained hands-on experience in advanced BMT methodologies, immune reconstitution, graft-versus-host disease management, and post-transplant rehabilitation. His global exposure strengthened his capabilities in performing complex bone marrow transplants for immunodeficiency syndromes, leukemias, rheumatic diseases with immune complications, and rare genetic disorders.

  • At Manipal Hospital Yelahanka, Dr. Bhattad established and leads the Centre of Excellence in Paediatric Immunology and Bone Marrow Transplant, which is among the region’s most specialised and trusted centres for childhood immune disorders. He has successfully diagnosed over 600 cases of Primary Immune Deficiency Disorders and performed multiple successful bone marrow transplants, significantly improving survival outcomes and enhancing access to specialized care for children. As one of the best paediatric immunologists in Yelahanka, he is revered by families and colleagues for his thorough clinical judgement, deep understanding of rare diseases, and empathetic approach to children requiring long-term, multidisciplinary medical care.

  • His areas of expertise span a wide spectrum, including Primary Immune Deficiency disorders, paediatric rheumatology, auto-inflammatory diseases, Kawasaki disease, systemic lupus erythematosus (SLE), juvenile idiopathic arthritis, recurrent infections, periodic fever syndromes, and paediatric transplant immunology. He is also an expert in haploidentical bone marrow transplants, stem cell transplants for genetic immunodeficiencies, post-transplant immune monitoring, and personalised immunomodulatory therapies. His advanced knowledge and precision-based treatment protocols help reduce complications, improve quality of life, and enhance long-term outcomes for children with complex immunological conditions.

  • Dedicated to academic excellence, Dr. Bhattad has authored over 80 peer-reviewed research publications in globally recognised journals such as Journal of Clinical Immunology, Clinical and Experimental Rheumatology, International Journal of Rheumatic Diseases, Indian Pediatrics, and many others. He is the author of the widely acclaimed book “Primary Immune Deficiencies Made Simple”, which has become a valuable guide for paediatricians and residents for clinical diagnosis and early detection of PID cases. His ongoing mission is to increase awareness, improve early diagnosis, and expand access to advanced immunology-based healthcare in India. He continues to mentor young doctors, actively speak at national and international forums, and contribute to clinical guidelines and evolving medical literature.

  • A proud member of elite national and international medical associations, including the European Society of BMT (EBMT), APSID, ISPID, PRSI, and the Indian Rheumatology Association, Dr. Bhattad remains closely aligned with global research and evolving treatment protocols. He is admired for his compassionate consultations, detailed diagnostic clarity, and supportive counselling to families navigating complex treatment decisions for their children.

  • With his vision to develop South India’s most advanced pediatric immunology centre, his clinical excellence, and his strong commitment to delivering compassionate and accessible care, Dr. Sagar Bhattad continues to be one of the best paediatric immunologists in Yelahanka, transforming paediatric care with innovation, dedication, and empathy.

    • Fellowship & Membership

  • Fellowship in BMT, European Society of BMT Certified (EBMT Diploma), European Society of Blood and Marrow Transplantation (EBMT)
  • Asia Pacific Society for Immunodeficiencies (APSID)
  • Indian Society for Primary Immune Deficiency (ISPID)
  • Indian Society for Kawasaki Disease (ISKD)
  • Pediatric Rheumatology Society of India (PRSI)
  • Indian Academy of Paediatrics (IAP)
  • Indian Rheumatology Association (IRA)

    • Field of Expertise

  • Bone Marrow Transplant
  • Primary Immune Deficiency disorders/Inborn Errors of Immunity
  • Kawasaki disease
  • Juvenile Arthritis
  • Pediatric lupus
  • Rheumatic diseases in children and adolescents
  • Auto-inflammatory diseases

    • Awards & Achievements

  • Silver Medal for MD Paediatrics, PGIMER, Chandigarh
  • Major Gen Amir Chand Gold Medal for research in Pediatric SLE
  • Moopens’ Clinical Excellence Award, 2025

    • Talks & Publications

  • Authored a book, Primary Immune Deficiencies Made Simple: This book presents a clinical approach to diagnosis to various Primary Immunodeficiency diseases. It has been well acknowledged by the pediatric fraternity and medical residents for its simplicity of presentation and its utility in day-to-day practice. As a result of heightened awareness, many children are now being timely diagnosed and treated.
  • Bhattad S et al. Successful Haploidentical Transplant Using Post-Transplant Cyclophosphamide in a Child with Chronic Granulomatous Disease-First Report from the Indian Subcontinent. J Clin Immunol. 2021 May;41(4):820-824.
  • Bhattad S, Dinakar C, Pinnamaraju H, Ganapathy A, Mannan A. Chronic Mucocutaneous Candidiasis in an Adolescent Boy Due to a Novel Mutation in TRAF3IP2. J Clin Immunol. 2019; 39(6):596-599.
  • Bhattad S, Rawat A, Gupta A, Suri D, Garg R, de Boer M, Kuijpers TW, Singh S. Early Complement Component Deficiency in a Single-Centre Cohort of Pediatric Onset Lupus. J Clin Immunol. 2015 Nov;35(8):777-85.
  • Bhattad S, Unni J, Varkey S. MSMD in a 3-Generation Multiplex Kindred Due to Autosomal Dominant STAT1 Deficiency. J Clin Immunol. 2021 Jan;41(1):259-261.
  • Singh S, Bhattad S, Danda D. Genetics of juvenile idiopathic arthritis. Int J Rheum Dis 2014 Mar;17(3):233-6.
  • Saini AG, Sankhyan N, Bhattad S, Vyas S, Saikia B, Singhi P. CNS vasculitis and stroke in neonatal lupus erythematosus: a case report and review of the literature. Eur J Paediatr Neurol 2014 May;18(3):444-8.
  • Singh S, Bhattad S. Advances in pediatric rheumatology April 2013–March 2014. Int J Rheum Dis 2014 Jun; 17(5): 593-4.
  • Bhattad S, Rawat A, Suri D, Gupta A, Saikia B, Minz RW, Sodhi KS, Singh S. Budd-Chiari syndrome in a child with leukocyte adhesion deficiency - a rare association"". Pediatr Blood and Cancer 2015;62(12):2244.
  • Singh S, Bhattad S. Recent advances in pediatric rheumatology. Int J Rheum Dis 2015 Jun;18(5):568-9.
  • Sharma P, Arthi N, Bhattad S, Vaiphei K. Cystic fibrosis in a retro-positive child. Indian J Pathol Microbiol 2015 Apr-Jun;58(2):204-10.
  • Bhattad S, Gupta A, Suri D, Sharma D, Sinha A, Singh S. Piriformis syndrome in a young child – an unusual clinical entity. Indian J Pediatr 2015 Aug 21.
  • Singh S, Bhattad S, Gupta A, Suri D, Rawat A, Rohit M. Mortality in children with Kawasaki disease: 20 years of experience from a tertiary care center in North India. Clin Exp Rheumatol 2015 Nov 17.
  • Singh S, Bhattad S, Sharma D, Philip S. Recent Advances in Kawasaki Disease - Proceedings of the 3rd Kawasaki Disease Summit, Chandigarh, 2014. Indian J Pediatr.2015 Aug 30.
  • Sharma A, Gupta A, Mitra S, Nada R, Bhattad S, Singh S. Systemic Juvenile Idiopathic Arthritis with Amyloidosis: An uncommon complication with a favorable outcome. Indian J Pediatr 2015 Oct 7.
  • Rawat A, Bhattad S, Singh S. Chronic Granulomatous Disease. Indian J Pediatr. 2016 Feb 11.
  • Bhattad S, Vignesh P, Rawat A, Suri D, Gupta A, Vyas S, Singh S. Spondylodiscitis in a Boy with X-linked Agammaglobulinemia: an Unusual Occurrence. J Clin Immunol. 2016 Mar 10.
  • Singh S, Agarwal S, Bhattad S, Gupta A, Suri D, Rawat A, Singhal M, Rohit M. Kawasaki disease in infants below 6 months: a clinical conundrum? Int J Rheum Dis. 2016 Mar 16.
  • Vignesh P, Bhattad S, Singhal M, Singh S. A 5-year-old boy with only fever and giant coronary aneurysms: the enigma of Kawasaki disease? Rheumatol Int. 2016 May 6.
  • Vignesh P, Bhattad S, Shandilya JK, Vyas S, Garg R, Rawat A. Vertebral Osteomyelitis and Acinetobacter Spp. Paravertebral Soft Tissue Infection in a 4-Year-Old Boy with X-Linked Chronic Granulomatous Disease. Pediatr Infect Dis J. 2016 May 12.
  • Sharma A, Bhattad S, Kumar P. Prevalence of hypertension & prehypertension among school children. Indian J Med Res. 2016 Mar;143(3):376
  • Suri D, Sharma A, Bhattad S, Rawat A, Arora S, Minz RW, Singh S. Arthritis in childhood human immunodeficiency virus infection predominantly associated with human leukocyte antigen B27. Int J Rheum Dis. 2016 Jul 26.
  • Singh S, Bhattad S. Kawasaki disease incidence at Chandigarh, North India, during 2009-2014. Rheumatol Int. 2016 Aug 4. [Epub ahead of print]
  • Suri D, Bhattad S, Gupta A, Trehan A, Bansal D, Rajwanshi A, Das A, Rawat A, Singh S. Malignancies in Children with Human Immunodeficiency Virus Infection - Our Experience at Chandigarh, North India. J Trop Pediatr. 2017; 63(3):210-216.
  • Nada R, Matthews JL, Bhattad S, Gupta A, Singh S. Necrotizing Polyarteritis Nodosa-like Vasculitis in a Child with Systemic Lupus Erythematosus. Indian Pediatr. 2017;54(2):139-144.
  • Suri D, Bhattad S, Sharma A, Gupta A, Rawat A, Sehgal S, Singh S, Gupta S. Serial serum immunoglobulin (IgG) trough levels in patients with X-linked Agammaglobulinemia on replacement therapy with intravenous immunoglobulin: its Correlation with Infections in Indian Children. J Clin Immunol. 2017;37(3):311-318.
  • Vijayvergiya R, Bhattad S, Varma S, Singhal M, Gordon J, Singh S. Presentation of missed childhood Kawasaki disease in adults: Experience from a tertiary care center in north India. Int J Rheum Dis. 2017; 20(8):1023-1027
  • H Vinayak, Sujith Kumar T, GV Basavaraj, Bhattad S. Bilateral extensive CMV retinitis in a sick child – harbinger of severe combined immunodeficiency. JPCC 2017.
  • Rawat A, Sharma M, Bhattad S, Suri D, Gupta A, et al. C1QA gene mutations in a pediatric SLE cohort from North India, Molecular Immunology, Volume 89, 2017, Page 117, ISSN 0161-5890, https://doi.org/10.1016/j.molimm.2017.06.044.
  • Jindal AK, Bhattad S, Suri D, Singhal M, Gupta A, Singh P. Moyamoya Syndrome in a Child with HIV-1 Infection. Pediatr Infect Dis J. 2018 Jun;37(6).
  • Chari PS, Chandra P, Prasad S, Bhattad S. Chronic granulomatous disease presenting with small bone osteomyelitis in a young child: A case report. Indian J Pathol Microbiol. 2018 Oct-Dec;61(4):557-560.
  • Rikhi R, Bhattad S, Jindal A, Saikia B, Garg R, Rawat A, Suri D, Singh S. Monoclonal Gammopathy of Unclear Significance in a Child with Wiskott-Aldrich Syndrome: a Rare Occurrence. J Clin Immunol. 2019; 39(1):7-10.
  • Bhattad S. Mendelian Susceptibility to Mycobacterial Disease: A Clinical and Laboratory Approach. Ped Inf Dis. 2019; 1(1):34-36
  • Bhattad S. Primary Immune Deficiency. Pediatr Inf Dis.2019;1(2):68-69.
  • Bhattad S. “When to Suspect Primary Immune Deficiency in Office Practice?”. Acta Scientific Paediatrics. 2019; 10 (2): 128-130.
  • Raj E, Zainab S, Bhattad S, Ginigeri C, D Mahesh. Nutritional Challenges and Management in DiGeorge Syndrome. Acta Scientific Nutritional Health. 2019; 12 (3): 73-77.
  • Bhattad S. Lymphopenia and Immune Deficiency: Eyes See Only What the Mind Knows! Pediatr Inf Dis 2019;1(4):169–170.
  • Bhattad S. Neutrophil Counts—Too Less and Too Many—Both Can Be Immune Deficiency. Pediatr Inf Dis 2019;1(3):120–122.
  • Shinde S, Chinnappa J, Shenoy B, Kaur T, Bhattad S. Think out of the box! Pediatric onset adult Sarcoidosis in a young child presenting as Pyrexia of unknown origin. Int J Clin Rheumatol. 2020; 15(4): 131-132.
  • Bhattad S. B-cell Defects: A Clinical and Immunological Approach. Pediatr Inf Dis 2020;2(1):36–38.
  • Shenoy B, Singh S, Ahmed MZ, Pal P, Balan S, Viswanathan V, Bhattad S, Rao AP, Chaudhuri M, Shastri DD, Soans ST. Indian Academy of Pediatrics Position Paper on Kawasaki Disease. Indian Pediatr. 2020 Nov 15;57(11):1040-1048.
  • Sharma A, Naidu G, Sharma V, Jha S, Dhooria A, Dhir V, Bhatia P, Sharma V, Bhattad S, et al. Deficiency of Adenosine Deaminase 2 in Adults and Children: Experience From India. Arthritis Rheumatol. 2020 Sep 6.
  • Yadav RM, Gupta M, Dalvi A, Bargir UA, Hule G, Bhattad S, et al. Prenatal Diagnosis for Primary Immunodeficiency Disorders-An Overview of the Indian Scenario. Front Immunol. 2020 Dec 7;11: 612316.
  • Kambli PM, Bargir UA, Yadav RM, Gupta MR, Dalvi AD, Bhattad S, Ramprakash S, Cp Raghuram et al. Clinical and Genetic Spectrum of a Large Cohort of Patients With Leukocyte Adhesion Deficiency Type 1 and 3: A Multicentric Study From India. Front Immunol. 2020 Dec 16;11:612703.
  • Rawat A, Jindal AK, Suri D, Pandiarajan V, Gupta Anju, Saikia Biman, Bhattad S, et al. Clinical and Genetic Profile of X-Linked Agammaglobulinemia: A Multicenter Experience From India. Front Immunol. 2021 Jan 15; 11: 612323.
  • Vignesh P, Rawat A, Kumrah R, Singh A, Bhattad S, Ramprakash S, CP Raghuram, et al. Clinical, immunological and molecular features of Severe Combined Immune Deficiency: A multi-institutional experience from India. Front Immunol. (Provisionally accepted).
  • Rawat A, Vignesh P, Sudhakar M, Bhattad S, Ginigeri C, Kumar H, et al. Clinical, immunological and molecular profile of Chronic granulomatous disease: A multi-centric study of 236 patients from India. Front Immunol. (Provisionally accepted).
  • Saikia B, Rawat A, Minz RW, Suri D, Pandiarajan V, Jindal A, Bhattad S, et al. Clinical Profile of Hyper-IgE Syndrome in India. Front Immunol. 2021 Feb 26;12:626593.
  • Suri D, Rikhi R, Jindal AK, Rawat A, Sudhakar M, Vignesh P, Bhattad S, et al. Wiskott Aldrich Syndrome: A Multi-Institutional Experience From India. Front Immunol. 2021 Apr 16;12:627651.
  • Suri D, Rawat A, Jindal AK, Vignesh P, Gupta A, Pilania RK, Bhattad S, et al. Spectrum of Systemic Auto-Inflammatory Diseases in India: A Multi-Centric Experience. Front Immunol. 2021 Mar 19;12:630691.
  • Taur PD, Gowri V, Pandrowala AA, Iyengar VV, Chougule A, Golwala Z, , Bhattad S, et al. Clinical and Molecular Findings in Mendelian Susceptibility to Mycobacterial Diseases: Experience From India. Front Immunol. 2021 Feb 25;12:631298.
  • Bhattad S, Gupta S, Israni N, Mohanty S. Profile of Kawasaki disease at a tertiary care center in India. Ann Pediatr Cardiol. 2021 Apr-Jun;14(2):187-191.
  • Jindal AK, Patra P, Guleria S, Gupta A, Bhattad S, Rawat A, Suri D, Pandiarajan V, Bishnoi A, Dogra S, Singh S. Clinical profile, long-term follow-up and outcome of juvenile systemic scleroderma: 25 years of clinical experience from North-West India. Clin Exp Rheumatol. 2021 Jul-Aug;39 Suppl 131(4):149-156.
  • Mohite RS, Kotecha U, Bhattad S. Familial Cold Autoinflammatory Syndrome Type 1. Indian J Pediatr. 2021 Aug;88(8):834.
  • Joseph R, Mohite RS, Ginigeri C, Kumar H, Ka Sudheer, Bhattad S. Hypogammaglobulinemia and periodic fevers – Think of TRNT1 deficiency! Pediatr Hematol Oncol Journal,2021, ISSN 24681245,https://doi.org/10.1016/j.phoj.2021.06.002.

    Field of Expertise

  • Bone Marrow Transplant
  • Primary Immune Deficiency disorders/Inborn Errors of Immunity
  • Kawasaki disease
  • Juvenile Arthritis
  • Pediatric lupus
  • Rheumatic diseases in children and adolescents
  • Auto-inflammatory diseases

    • Fellowship & Membership

  • Fellowship in BMT, European Society of BMT Certified (EBMT Diploma), European Society of Blood and Marrow Transplantation (EBMT)
  • Asia Pacific Society for Immunodeficiencies (APSID)
  • Indian Society for Primary Immune Deficiency (ISPID)
  • Indian Society for Kawasaki Disease (ISKD)
  • Pediatric Rheumatology Society of India (PRSI)
  • Indian Academy of Paediatrics (IAP)
  • Indian Rheumatology Association (IRA)

    • Languages Spoken

  • English
  • Kannada
  • Hindi

    • Awards & Achievements

  • Silver Medal for MD Paediatrics, PGIMER, Chandigarh
  • Major Gen Amir Chand Gold Medal for research in Pediatric SLE
  • Moopens’ Clinical Excellence Award, 2025

    • Talks & Publications

  • Authored a book, Primary Immune Deficiencies Made Simple: This book presents a clinical approach to diagnosis to various Primary Immunodeficiency diseases. It has been well acknowledged by the pediatric fraternity and medical residents for its simplicity of presentation and its utility in day-to-day practice. As a result of heightened awareness, many children are now being timely diagnosed and treated.
  • Bhattad S et al. Successful Haploidentical Transplant Using Post-Transplant Cyclophosphamide in a Child with Chronic Granulomatous Disease-First Report from the Indian Subcontinent. J Clin Immunol. 2021 May;41(4):820-824.
  • Bhattad S, Dinakar C, Pinnamaraju H, Ganapathy A, Mannan A. Chronic Mucocutaneous Candidiasis in an Adolescent Boy Due to a Novel Mutation in TRAF3IP2. J Clin Immunol. 2019; 39(6):596-599.
  • Bhattad S, Rawat A, Gupta A, Suri D, Garg R, de Boer M, Kuijpers TW, Singh S. Early Complement Component Deficiency in a Single-Centre Cohort of Pediatric Onset Lupus. J Clin Immunol. 2015 Nov;35(8):777-85.
  • Bhattad S, Unni J, Varkey S. MSMD in a 3-Generation Multiplex Kindred Due to Autosomal Dominant STAT1 Deficiency. J Clin Immunol. 2021 Jan;41(1):259-261.
  • Singh S, Bhattad S, Danda D. Genetics of juvenile idiopathic arthritis. Int J Rheum Dis 2014 Mar;17(3):233-6.
  • Saini AG, Sankhyan N, Bhattad S, Vyas S, Saikia B, Singhi P. CNS vasculitis and stroke in neonatal lupus erythematosus: a case report and review of the literature. Eur J Paediatr Neurol 2014 May;18(3):444-8.
  • Singh S, Bhattad S. Advances in pediatric rheumatology April 2013–March 2014. Int J Rheum Dis 2014 Jun; 17(5): 593-4.
  • Bhattad S, Rawat A, Suri D, Gupta A, Saikia B, Minz RW, Sodhi KS, Singh S. Budd-Chiari syndrome in a child with leukocyte adhesion deficiency - a rare association"". Pediatr Blood and Cancer 2015;62(12):2244.
  • Singh S, Bhattad S. Recent advances in pediatric rheumatology. Int J Rheum Dis 2015 Jun;18(5):568-9.
  • Sharma P, Arthi N, Bhattad S, Vaiphei K. Cystic fibrosis in a retro-positive child. Indian J Pathol Microbiol 2015 Apr-Jun;58(2):204-10.
  • Bhattad S, Gupta A, Suri D, Sharma D, Sinha A, Singh S. Piriformis syndrome in a young child – an unusual clinical entity. Indian J Pediatr 2015 Aug 21.
  • Singh S, Bhattad S, Gupta A, Suri D, Rawat A, Rohit M. Mortality in children with Kawasaki disease: 20 years of experience from a tertiary care center in North India. Clin Exp Rheumatol 2015 Nov 17.
  • Singh S, Bhattad S, Sharma D, Philip S. Recent Advances in Kawasaki Disease - Proceedings of the 3rd Kawasaki Disease Summit, Chandigarh, 2014. Indian J Pediatr.2015 Aug 30.
  • Sharma A, Gupta A, Mitra S, Nada R, Bhattad S, Singh S. Systemic Juvenile Idiopathic Arthritis with Amyloidosis: An uncommon complication with a favorable outcome. Indian J Pediatr 2015 Oct 7.
  • Rawat A, Bhattad S, Singh S. Chronic Granulomatous Disease. Indian J Pediatr. 2016 Feb 11.
  • Bhattad S, Vignesh P, Rawat A, Suri D, Gupta A, Vyas S, Singh S. Spondylodiscitis in a Boy with X-linked Agammaglobulinemia: an Unusual Occurrence. J Clin Immunol. 2016 Mar 10.
  • Singh S, Agarwal S, Bhattad S, Gupta A, Suri D, Rawat A, Singhal M, Rohit M. Kawasaki disease in infants below 6 months: a clinical conundrum? Int J Rheum Dis. 2016 Mar 16.
  • Vignesh P, Bhattad S, Singhal M, Singh S. A 5-year-old boy with only fever and giant coronary aneurysms: the enigma of Kawasaki disease? Rheumatol Int. 2016 May 6.
  • Vignesh P, Bhattad S, Shandilya JK, Vyas S, Garg R, Rawat A. Vertebral Osteomyelitis and Acinetobacter Spp. Paravertebral Soft Tissue Infection in a 4-Year-Old Boy with X-Linked Chronic Granulomatous Disease. Pediatr Infect Dis J. 2016 May 12.
  • Sharma A, Bhattad S, Kumar P. Prevalence of hypertension & prehypertension among school children. Indian J Med Res. 2016 Mar;143(3):376
  • Suri D, Sharma A, Bhattad S, Rawat A, Arora S, Minz RW, Singh S. Arthritis in childhood human immunodeficiency virus infection predominantly associated with human leukocyte antigen B27. Int J Rheum Dis. 2016 Jul 26.
  • Singh S, Bhattad S. Kawasaki disease incidence at Chandigarh, North India, during 2009-2014. Rheumatol Int. 2016 Aug 4. [Epub ahead of print]
  • Suri D, Bhattad S, Gupta A, Trehan A, Bansal D, Rajwanshi A, Das A, Rawat A, Singh S. Malignancies in Children with Human Immunodeficiency Virus Infection - Our Experience at Chandigarh, North India. J Trop Pediatr. 2017; 63(3):210-216.
  • Nada R, Matthews JL, Bhattad S, Gupta A, Singh S. Necrotizing Polyarteritis Nodosa-like Vasculitis in a Child with Systemic Lupus Erythematosus. Indian Pediatr. 2017;54(2):139-144.
  • Suri D, Bhattad S, Sharma A, Gupta A, Rawat A, Sehgal S, Singh S, Gupta S. Serial serum immunoglobulin (IgG) trough levels in patients with X-linked Agammaglobulinemia on replacement therapy with intravenous immunoglobulin: its Correlation with Infections in Indian Children. J Clin Immunol. 2017;37(3):311-318.
  • Vijayvergiya R, Bhattad S, Varma S, Singhal M, Gordon J, Singh S. Presentation of missed childhood Kawasaki disease in adults: Experience from a tertiary care center in north India. Int J Rheum Dis. 2017; 20(8):1023-1027
  • H Vinayak, Sujith Kumar T, GV Basavaraj, Bhattad S. Bilateral extensive CMV retinitis in a sick child – harbinger of severe combined immunodeficiency. JPCC 2017.
  • Rawat A, Sharma M, Bhattad S, Suri D, Gupta A, et al. C1QA gene mutations in a pediatric SLE cohort from North India, Molecular Immunology, Volume 89, 2017, Page 117, ISSN 0161-5890, https://doi.org/10.1016/j.molimm.2017.06.044.
  • Jindal AK, Bhattad S, Suri D, Singhal M, Gupta A, Singh P. Moyamoya Syndrome in a Child with HIV-1 Infection. Pediatr Infect Dis J. 2018 Jun;37(6).
  • Chari PS, Chandra P, Prasad S, Bhattad S. Chronic granulomatous disease presenting with small bone osteomyelitis in a young child: A case report. Indian J Pathol Microbiol. 2018 Oct-Dec;61(4):557-560.
  • Rikhi R, Bhattad S, Jindal A, Saikia B, Garg R, Rawat A, Suri D, Singh S. Monoclonal Gammopathy of Unclear Significance in a Child with Wiskott-Aldrich Syndrome: a Rare Occurrence. J Clin Immunol. 2019; 39(1):7-10.
  • Bhattad S. Mendelian Susceptibility to Mycobacterial Disease: A Clinical and Laboratory Approach. Ped Inf Dis. 2019; 1(1):34-36
  • Bhattad S. Primary Immune Deficiency. Pediatr Inf Dis.2019;1(2):68-69.
  • Bhattad S. “When to Suspect Primary Immune Deficiency in Office Practice?”. Acta Scientific Paediatrics. 2019; 10 (2): 128-130.
  • Raj E, Zainab S, Bhattad S, Ginigeri C, D Mahesh. Nutritional Challenges and Management in DiGeorge Syndrome. Acta Scientific Nutritional Health. 2019; 12 (3): 73-77.
  • Bhattad S. Lymphopenia and Immune Deficiency: Eyes See Only What the Mind Knows! Pediatr Inf Dis 2019;1(4):169–170.
  • Bhattad S. Neutrophil Counts—Too Less and Too Many—Both Can Be Immune Deficiency. Pediatr Inf Dis 2019;1(3):120–122.
  • Shinde S, Chinnappa J, Shenoy B, Kaur T, Bhattad S. Think out of the box! Pediatric onset adult Sarcoidosis in a young child presenting as Pyrexia of unknown origin. Int J Clin Rheumatol. 2020; 15(4): 131-132.
  • Bhattad S. B-cell Defects: A Clinical and Immunological Approach. Pediatr Inf Dis 2020;2(1):36–38.
  • Shenoy B, Singh S, Ahmed MZ, Pal P, Balan S, Viswanathan V, Bhattad S, Rao AP, Chaudhuri M, Shastri DD, Soans ST. Indian Academy of Pediatrics Position Paper on Kawasaki Disease. Indian Pediatr. 2020 Nov 15;57(11):1040-1048.
  • Sharma A, Naidu G, Sharma V, Jha S, Dhooria A, Dhir V, Bhatia P, Sharma V, Bhattad S, et al. Deficiency of Adenosine Deaminase 2 in Adults and Children: Experience From India. Arthritis Rheumatol. 2020 Sep 6.
  • Yadav RM, Gupta M, Dalvi A, Bargir UA, Hule G, Bhattad S, et al. Prenatal Diagnosis for Primary Immunodeficiency Disorders-An Overview of the Indian Scenario. Front Immunol. 2020 Dec 7;11: 612316.
  • Kambli PM, Bargir UA, Yadav RM, Gupta MR, Dalvi AD, Bhattad S, Ramprakash S, Cp Raghuram et al. Clinical and Genetic Spectrum of a Large Cohort of Patients With Leukocyte Adhesion Deficiency Type 1 and 3: A Multicentric Study From India. Front Immunol. 2020 Dec 16;11:612703.
  • Rawat A, Jindal AK, Suri D, Pandiarajan V, Gupta Anju, Saikia Biman, Bhattad S, et al. Clinical and Genetic Profile of X-Linked Agammaglobulinemia: A Multicenter Experience From India. Front Immunol. 2021 Jan 15; 11: 612323.
  • Vignesh P, Rawat A, Kumrah R, Singh A, Bhattad S, Ramprakash S, CP Raghuram, et al. Clinical, immunological and molecular features of Severe Combined Immune Deficiency: A multi-institutional experience from India. Front Immunol. (Provisionally accepted).
  • Rawat A, Vignesh P, Sudhakar M, Bhattad S, Ginigeri C, Kumar H, et al. Clinical, immunological and molecular profile of Chronic granulomatous disease: A multi-centric study of 236 patients from India. Front Immunol. (Provisionally accepted).
  • Saikia B, Rawat A, Minz RW, Suri D, Pandiarajan V, Jindal A, Bhattad S, et al. Clinical Profile of Hyper-IgE Syndrome in India. Front Immunol. 2021 Feb 26;12:626593.
  • Suri D, Rikhi R, Jindal AK, Rawat A, Sudhakar M, Vignesh P, Bhattad S, et al. Wiskott Aldrich Syndrome: A Multi-Institutional Experience From India. Front Immunol. 2021 Apr 16;12:627651.
  • Suri D, Rawat A, Jindal AK, Vignesh P, Gupta A, Pilania RK, Bhattad S, et al. Spectrum of Systemic Auto-Inflammatory Diseases in India: A Multi-Centric Experience. Front Immunol. 2021 Mar 19;12:630691.
  • Taur PD, Gowri V, Pandrowala AA, Iyengar VV, Chougule A, Golwala Z, , Bhattad S, et al. Clinical and Molecular Findings in Mendelian Susceptibility to Mycobacterial Diseases: Experience From India. Front Immunol. 2021 Feb 25;12:631298.
  • Bhattad S, Gupta S, Israni N, Mohanty S. Profile of Kawasaki disease at a tertiary care center in India. Ann Pediatr Cardiol. 2021 Apr-Jun;14(2):187-191.
  • Jindal AK, Patra P, Guleria S, Gupta A, Bhattad S, Rawat A, Suri D, Pandiarajan V, Bishnoi A, Dogra S, Singh S. Clinical profile, long-term follow-up and outcome of juvenile systemic scleroderma: 25 years of clinical experience from North-West India. Clin Exp Rheumatol. 2021 Jul-Aug;39 Suppl 131(4):149-156.
  • Mohite RS, Kotecha U, Bhattad S. Familial Cold Autoinflammatory Syndrome Type 1. Indian J Pediatr. 2021 Aug;88(8):834.
  • Joseph R, Mohite RS, Ginigeri C, Kumar H, Ka Sudheer, Bhattad S. Hypogammaglobulinemia and periodic fevers – Think of TRNT1 deficiency! Pediatr Hematol Oncol Journal,2021, ISSN 24681245,https://doi.org/10.1016/j.phoj.2021.06.002.

    • Overview

  • Dr. Sagar Bhattad is a highly skilled Paediatric Immunologist and Bone Marrow Transplant (BMT) specialist in Yelahanka. He is currently practising as the Lead Consultant – Paediatric Immunology, Rheumatology & Bone Marrow Transplant at Manipal Hospital Yelahanka, Bangalore, bringing over years of advanced clinical expertise in treating complex immune disorders, autoimmune diseases, rheumatic conditions, and paediatric bone marrow transplants. Recognised as one of the best paediatric immunologists in Yelahanka, he has pioneered specialised care for children with Primary Immune Deficiency Disorders (PIDs), juvenile arthritis, Kawasaki disease, paediatric lupus, autoinflammatory conditions, and bone marrow failure syndromes through evidence-based clinical practice, compassionate care, and global-standard transplant programs.

  • A trailblazer in his field, Dr. Bhattad is India’s first DM super-specialist in Paediatric Clinical Immunology and Rheumatology, trained at the prestigious Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. During his academic tenure, he received the Silver Medal in MD Paediatrics and the distinguished Major Gen Amir Chand Gold Medal for his groundbreaking research in pediatric lupus, highlighting his early contributions to clinical immunology. To further enhance his expertise, he trained at Europe’s largest Paediatric Immune Deficiency Transplant Centre, the Great North Children’s Hospital, Newcastle, UK, where he gained hands-on experience in advanced BMT methodologies, immune reconstitution, graft-versus-host disease management, and post-transplant rehabilitation. His global exposure strengthened his capabilities in performing complex bone marrow transplants for immunodeficiency syndromes, leukemias, rheumatic diseases with immune complications, and rare genetic disorders.

  • At Manipal Hospital Yelahanka, Dr. Bhattad established and leads the Centre of Excellence in Paediatric Immunology and Bone Marrow Transplant, which is among the region’s most specialised and trusted centres for childhood immune disorders. He has successfully diagnosed over 600 cases of Primary Immune Deficiency Disorders and performed multiple successful bone marrow transplants, significantly improving survival outcomes and enhancing access to specialized care for children. As one of the best paediatric immunologists in Yelahanka, he is revered by families and colleagues for his thorough clinical judgement, deep understanding of rare diseases, and empathetic approach to children requiring long-term, multidisciplinary medical care.

  • His areas of expertise span a wide spectrum, including Primary Immune Deficiency disorders, paediatric rheumatology, auto-inflammatory diseases, Kawasaki disease, systemic lupus erythematosus (SLE), juvenile idiopathic arthritis, recurrent infections, periodic fever syndromes, and paediatric transplant immunology. He is also an expert in haploidentical bone marrow transplants, stem cell transplants for genetic immunodeficiencies, post-transplant immune monitoring, and personalised immunomodulatory therapies. His advanced knowledge and precision-based treatment protocols help reduce complications, improve quality of life, and enhance long-term outcomes for children with complex immunological conditions.

  • Dedicated to academic excellence, Dr. Bhattad has authored over 80 peer-reviewed research publications in globally recognised journals such as Journal of Clinical Immunology, Clinical and Experimental Rheumatology, International Journal of Rheumatic Diseases, Indian Pediatrics, and many others. He is the author of the widely acclaimed book “Primary Immune Deficiencies Made Simple”, which has become a valuable guide for paediatricians and residents for clinical diagnosis and early detection of PID cases. His ongoing mission is to increase awareness, improve early diagnosis, and expand access to advanced immunology-based healthcare in India. He continues to mentor young doctors, actively speak at national and international forums, and contribute to clinical guidelines and evolving medical literature.

  • A proud member of elite national and international medical associations, including the European Society of BMT (EBMT), APSID, ISPID, PRSI, and the Indian Rheumatology Association, Dr. Bhattad remains closely aligned with global research and evolving treatment protocols. He is admired for his compassionate consultations, detailed diagnostic clarity, and supportive counselling to families navigating complex treatment decisions for their children.

  • With his vision to develop South India’s most advanced pediatric immunology centre, his clinical excellence, and his strong commitment to delivering compassionate and accessible care, Dr. Sagar Bhattad continues to be one of the best paediatric immunologists in Yelahanka, transforming paediatric care with innovation, dedication, and empathy.

    Awards & Achievements

  • Silver Medal for MD Paediatrics, PGIMER, Chandigarh
  • Major Gen Amir Chand Gold Medal for research in Pediatric SLE
  • Moopens’ Clinical Excellence Award, 2025

    • Fellowship & Membership

  • Fellowship in BMT, European Society of BMT Certified (EBMT Diploma), European Society of Blood and Marrow Transplantation (EBMT)
  • Asia Pacific Society for Immunodeficiencies (APSID)
  • Indian Society for Primary Immune Deficiency (ISPID)
  • Indian Society for Kawasaki Disease (ISKD)
  • Pediatric Rheumatology Society of India (PRSI)
  • Indian Academy of Paediatrics (IAP)
  • Indian Rheumatology Association (IRA)

    • Field of Expertise

  • Bone Marrow Transplant
  • Primary Immune Deficiency disorders/Inborn Errors of Immunity
  • Kawasaki disease
  • Juvenile Arthritis
  • Pediatric lupus
  • Rheumatic diseases in children and adolescents
  • Auto-inflammatory diseases

    • Languages Spoken

  • English
  • Kannada
  • Hindi

    • Talks & Publications

  • Authored a book, Primary Immune Deficiencies Made Simple: This book presents a clinical approach to diagnosis to various Primary Immunodeficiency diseases. It has been well acknowledged by the pediatric fraternity and medical residents for its simplicity of presentation and its utility in day-to-day practice. As a result of heightened awareness, many children are now being timely diagnosed and treated.
  • Bhattad S et al. Successful Haploidentical Transplant Using Post-Transplant Cyclophosphamide in a Child with Chronic Granulomatous Disease-First Report from the Indian Subcontinent. J Clin Immunol. 2021 May;41(4):820-824.
  • Bhattad S, Dinakar C, Pinnamaraju H, Ganapathy A, Mannan A. Chronic Mucocutaneous Candidiasis in an Adolescent Boy Due to a Novel Mutation in TRAF3IP2. J Clin Immunol. 2019; 39(6):596-599.
  • Bhattad S, Rawat A, Gupta A, Suri D, Garg R, de Boer M, Kuijpers TW, Singh S. Early Complement Component Deficiency in a Single-Centre Cohort of Pediatric Onset Lupus. J Clin Immunol. 2015 Nov;35(8):777-85.
  • Bhattad S, Unni J, Varkey S. MSMD in a 3-Generation Multiplex Kindred Due to Autosomal Dominant STAT1 Deficiency. J Clin Immunol. 2021 Jan;41(1):259-261.
  • Singh S, Bhattad S, Danda D. Genetics of juvenile idiopathic arthritis. Int J Rheum Dis 2014 Mar;17(3):233-6.
  • Saini AG, Sankhyan N, Bhattad S, Vyas S, Saikia B, Singhi P. CNS vasculitis and stroke in neonatal lupus erythematosus: a case report and review of the literature. Eur J Paediatr Neurol 2014 May;18(3):444-8.
  • Singh S, Bhattad S. Advances in pediatric rheumatology April 2013–March 2014. Int J Rheum Dis 2014 Jun; 17(5): 593-4.
  • Bhattad S, Rawat A, Suri D, Gupta A, Saikia B, Minz RW, Sodhi KS, Singh S. Budd-Chiari syndrome in a child with leukocyte adhesion deficiency - a rare association"". Pediatr Blood and Cancer 2015;62(12):2244.
  • Singh S, Bhattad S. Recent advances in pediatric rheumatology. Int J Rheum Dis 2015 Jun;18(5):568-9.
  • Sharma P, Arthi N, Bhattad S, Vaiphei K. Cystic fibrosis in a retro-positive child. Indian J Pathol Microbiol 2015 Apr-Jun;58(2):204-10.
  • Bhattad S, Gupta A, Suri D, Sharma D, Sinha A, Singh S. Piriformis syndrome in a young child – an unusual clinical entity. Indian J Pediatr 2015 Aug 21.
  • Singh S, Bhattad S, Gupta A, Suri D, Rawat A, Rohit M. Mortality in children with Kawasaki disease: 20 years of experience from a tertiary care center in North India. Clin Exp Rheumatol 2015 Nov 17.
  • Singh S, Bhattad S, Sharma D, Philip S. Recent Advances in Kawasaki Disease - Proceedings of the 3rd Kawasaki Disease Summit, Chandigarh, 2014. Indian J Pediatr.2015 Aug 30.
  • Sharma A, Gupta A, Mitra S, Nada R, Bhattad S, Singh S. Systemic Juvenile Idiopathic Arthritis with Amyloidosis: An uncommon complication with a favorable outcome. Indian J Pediatr 2015 Oct 7.
  • Rawat A, Bhattad S, Singh S. Chronic Granulomatous Disease. Indian J Pediatr. 2016 Feb 11.
  • Bhattad S, Vignesh P, Rawat A, Suri D, Gupta A, Vyas S, Singh S. Spondylodiscitis in a Boy with X-linked Agammaglobulinemia: an Unusual Occurrence. J Clin Immunol. 2016 Mar 10.
  • Singh S, Agarwal S, Bhattad S, Gupta A, Suri D, Rawat A, Singhal M, Rohit M. Kawasaki disease in infants below 6 months: a clinical conundrum? Int J Rheum Dis. 2016 Mar 16.
  • Vignesh P, Bhattad S, Singhal M, Singh S. A 5-year-old boy with only fever and giant coronary aneurysms: the enigma of Kawasaki disease? Rheumatol Int. 2016 May 6.
  • Vignesh P, Bhattad S, Shandilya JK, Vyas S, Garg R, Rawat A. Vertebral Osteomyelitis and Acinetobacter Spp. Paravertebral Soft Tissue Infection in a 4-Year-Old Boy with X-Linked Chronic Granulomatous Disease. Pediatr Infect Dis J. 2016 May 12.
  • Sharma A, Bhattad S, Kumar P. Prevalence of hypertension & prehypertension among school children. Indian J Med Res. 2016 Mar;143(3):376
  • Suri D, Sharma A, Bhattad S, Rawat A, Arora S, Minz RW, Singh S. Arthritis in childhood human immunodeficiency virus infection predominantly associated with human leukocyte antigen B27. Int J Rheum Dis. 2016 Jul 26.
  • Singh S, Bhattad S. Kawasaki disease incidence at Chandigarh, North India, during 2009-2014. Rheumatol Int. 2016 Aug 4. [Epub ahead of print]
  • Suri D, Bhattad S, Gupta A, Trehan A, Bansal D, Rajwanshi A, Das A, Rawat A, Singh S. Malignancies in Children with Human Immunodeficiency Virus Infection - Our Experience at Chandigarh, North India. J Trop Pediatr. 2017; 63(3):210-216.
  • Nada R, Matthews JL, Bhattad S, Gupta A, Singh S. Necrotizing Polyarteritis Nodosa-like Vasculitis in a Child with Systemic Lupus Erythematosus. Indian Pediatr. 2017;54(2):139-144.
  • Suri D, Bhattad S, Sharma A, Gupta A, Rawat A, Sehgal S, Singh S, Gupta S. Serial serum immunoglobulin (IgG) trough levels in patients with X-linked Agammaglobulinemia on replacement therapy with intravenous immunoglobulin: its Correlation with Infections in Indian Children. J Clin Immunol. 2017;37(3):311-318.
  • Vijayvergiya R, Bhattad S, Varma S, Singhal M, Gordon J, Singh S. Presentation of missed childhood Kawasaki disease in adults: Experience from a tertiary care center in north India. Int J Rheum Dis. 2017; 20(8):1023-1027
  • H Vinayak, Sujith Kumar T, GV Basavaraj, Bhattad S. Bilateral extensive CMV retinitis in a sick child – harbinger of severe combined immunodeficiency. JPCC 2017.
  • Rawat A, Sharma M, Bhattad S, Suri D, Gupta A, et al. C1QA gene mutations in a pediatric SLE cohort from North India, Molecular Immunology, Volume 89, 2017, Page 117, ISSN 0161-5890, https://doi.org/10.1016/j.molimm.2017.06.044.
  • Jindal AK, Bhattad S, Suri D, Singhal M, Gupta A, Singh P. Moyamoya Syndrome in a Child with HIV-1 Infection. Pediatr Infect Dis J. 2018 Jun;37(6).
  • Chari PS, Chandra P, Prasad S, Bhattad S. Chronic granulomatous disease presenting with small bone osteomyelitis in a young child: A case report. Indian J Pathol Microbiol. 2018 Oct-Dec;61(4):557-560.
  • Rikhi R, Bhattad S, Jindal A, Saikia B, Garg R, Rawat A, Suri D, Singh S. Monoclonal Gammopathy of Unclear Significance in a Child with Wiskott-Aldrich Syndrome: a Rare Occurrence. J Clin Immunol. 2019; 39(1):7-10.
  • Bhattad S. Mendelian Susceptibility to Mycobacterial Disease: A Clinical and Laboratory Approach. Ped Inf Dis. 2019; 1(1):34-36
  • Bhattad S. Primary Immune Deficiency. Pediatr Inf Dis.2019;1(2):68-69.
  • Bhattad S. “When to Suspect Primary Immune Deficiency in Office Practice?”. Acta Scientific Paediatrics. 2019; 10 (2): 128-130.
  • Raj E, Zainab S, Bhattad S, Ginigeri C, D Mahesh. Nutritional Challenges and Management in DiGeorge Syndrome. Acta Scientific Nutritional Health. 2019; 12 (3): 73-77.
  • Bhattad S. Lymphopenia and Immune Deficiency: Eyes See Only What the Mind Knows! Pediatr Inf Dis 2019;1(4):169–170.
  • Bhattad S. Neutrophil Counts—Too Less and Too Many—Both Can Be Immune Deficiency. Pediatr Inf Dis 2019;1(3):120–122.
  • Shinde S, Chinnappa J, Shenoy B, Kaur T, Bhattad S. Think out of the box! Pediatric onset adult Sarcoidosis in a young child presenting as Pyrexia of unknown origin. Int J Clin Rheumatol. 2020; 15(4): 131-132.
  • Bhattad S. B-cell Defects: A Clinical and Immunological Approach. Pediatr Inf Dis 2020;2(1):36–38.
  • Shenoy B, Singh S, Ahmed MZ, Pal P, Balan S, Viswanathan V, Bhattad S, Rao AP, Chaudhuri M, Shastri DD, Soans ST. Indian Academy of Pediatrics Position Paper on Kawasaki Disease. Indian Pediatr. 2020 Nov 15;57(11):1040-1048.
  • Sharma A, Naidu G, Sharma V, Jha S, Dhooria A, Dhir V, Bhatia P, Sharma V, Bhattad S, et al. Deficiency of Adenosine Deaminase 2 in Adults and Children: Experience From India. Arthritis Rheumatol. 2020 Sep 6.
  • Yadav RM, Gupta M, Dalvi A, Bargir UA, Hule G, Bhattad S, et al. Prenatal Diagnosis for Primary Immunodeficiency Disorders-An Overview of the Indian Scenario. Front Immunol. 2020 Dec 7;11: 612316.
  • Kambli PM, Bargir UA, Yadav RM, Gupta MR, Dalvi AD, Bhattad S, Ramprakash S, Cp Raghuram et al. Clinical and Genetic Spectrum of a Large Cohort of Patients With Leukocyte Adhesion Deficiency Type 1 and 3: A Multicentric Study From India. Front Immunol. 2020 Dec 16;11:612703.
  • Rawat A, Jindal AK, Suri D, Pandiarajan V, Gupta Anju, Saikia Biman, Bhattad S, et al. Clinical and Genetic Profile of X-Linked Agammaglobulinemia: A Multicenter Experience From India. Front Immunol. 2021 Jan 15; 11: 612323.
  • Vignesh P, Rawat A, Kumrah R, Singh A, Bhattad S, Ramprakash S, CP Raghuram, et al. Clinical, immunological and molecular features of Severe Combined Immune Deficiency: A multi-institutional experience from India. Front Immunol. (Provisionally accepted).
  • Rawat A, Vignesh P, Sudhakar M, Bhattad S, Ginigeri C, Kumar H, et al. Clinical, immunological and molecular profile of Chronic granulomatous disease: A multi-centric study of 236 patients from India. Front Immunol. (Provisionally accepted).
  • Saikia B, Rawat A, Minz RW, Suri D, Pandiarajan V, Jindal A, Bhattad S, et al. Clinical Profile of Hyper-IgE Syndrome in India. Front Immunol. 2021 Feb 26;12:626593.
  • Suri D, Rikhi R, Jindal AK, Rawat A, Sudhakar M, Vignesh P, Bhattad S, et al. Wiskott Aldrich Syndrome: A Multi-Institutional Experience From India. Front Immunol. 2021 Apr 16;12:627651.
  • Suri D, Rawat A, Jindal AK, Vignesh P, Gupta A, Pilania RK, Bhattad S, et al. Spectrum of Systemic Auto-Inflammatory Diseases in India: A Multi-Centric Experience. Front Immunol. 2021 Mar 19;12:630691.
  • Taur PD, Gowri V, Pandrowala AA, Iyengar VV, Chougule A, Golwala Z, , Bhattad S, et al. Clinical and Molecular Findings in Mendelian Susceptibility to Mycobacterial Diseases: Experience From India. Front Immunol. 2021 Feb 25;12:631298.
  • Bhattad S, Gupta S, Israni N, Mohanty S. Profile of Kawasaki disease at a tertiary care center in India. Ann Pediatr Cardiol. 2021 Apr-Jun;14(2):187-191.
  • Jindal AK, Patra P, Guleria S, Gupta A, Bhattad S, Rawat A, Suri D, Pandiarajan V, Bishnoi A, Dogra S, Singh S. Clinical profile, long-term follow-up and outcome of juvenile systemic scleroderma: 25 years of clinical experience from North-West India. Clin Exp Rheumatol. 2021 Jul-Aug;39 Suppl 131(4):149-156.
  • Mohite RS, Kotecha U, Bhattad S. Familial Cold Autoinflammatory Syndrome Type 1. Indian J Pediatr. 2021 Aug;88(8):834.
  • Joseph R, Mohite RS, Ginigeri C, Kumar H, Ka Sudheer, Bhattad S. Hypogammaglobulinemia and periodic fevers – Think of TRNT1 deficiency! Pediatr Hematol Oncol Journal,2021, ISSN 24681245,https://doi.org/10.1016/j.phoj.2021.06.002.

    • Overview

  • Dr. Sagar Bhattad is a highly skilled Paediatric Immunologist and Bone Marrow Transplant (BMT) specialist in Yelahanka. He is currently practising as the Lead Consultant – Paediatric Immunology, Rheumatology & Bone Marrow Transplant at Manipal Hospital Yelahanka, Bangalore, bringing over years of advanced clinical expertise in treating complex immune disorders, autoimmune diseases, rheumatic conditions, and paediatric bone marrow transplants. Recognised as one of the best paediatric immunologists in Yelahanka, he has pioneered specialised care for children with Primary Immune Deficiency Disorders (PIDs), juvenile arthritis, Kawasaki disease, paediatric lupus, autoinflammatory conditions, and bone marrow failure syndromes through evidence-based clinical practice, compassionate care, and global-standard transplant programs.

  • A trailblazer in his field, Dr. Bhattad is India’s first DM super-specialist in Paediatric Clinical Immunology and Rheumatology, trained at the prestigious Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. During his academic tenure, he received the Silver Medal in MD Paediatrics and the distinguished Major Gen Amir Chand Gold Medal for his groundbreaking research in pediatric lupus, highlighting his early contributions to clinical immunology. To further enhance his expertise, he trained at Europe’s largest Paediatric Immune Deficiency Transplant Centre, the Great North Children’s Hospital, Newcastle, UK, where he gained hands-on experience in advanced BMT methodologies, immune reconstitution, graft-versus-host disease management, and post-transplant rehabilitation. His global exposure strengthened his capabilities in performing complex bone marrow transplants for immunodeficiency syndromes, leukemias, rheumatic diseases with immune complications, and rare genetic disorders.

  • At Manipal Hospital Yelahanka, Dr. Bhattad established and leads the Centre of Excellence in Paediatric Immunology and Bone Marrow Transplant, which is among the region’s most specialised and trusted centres for childhood immune disorders. He has successfully diagnosed over 600 cases of Primary Immune Deficiency Disorders and performed multiple successful bone marrow transplants, significantly improving survival outcomes and enhancing access to specialized care for children. As one of the best paediatric immunologists in Yelahanka, he is revered by families and colleagues for his thorough clinical judgement, deep understanding of rare diseases, and empathetic approach to children requiring long-term, multidisciplinary medical care.

  • His areas of expertise span a wide spectrum, including Primary Immune Deficiency disorders, paediatric rheumatology, auto-inflammatory diseases, Kawasaki disease, systemic lupus erythematosus (SLE), juvenile idiopathic arthritis, recurrent infections, periodic fever syndromes, and paediatric transplant immunology. He is also an expert in haploidentical bone marrow transplants, stem cell transplants for genetic immunodeficiencies, post-transplant immune monitoring, and personalised immunomodulatory therapies. His advanced knowledge and precision-based treatment protocols help reduce complications, improve quality of life, and enhance long-term outcomes for children with complex immunological conditions.

  • Dedicated to academic excellence, Dr. Bhattad has authored over 80 peer-reviewed research publications in globally recognised journals such as Journal of Clinical Immunology, Clinical and Experimental Rheumatology, International Journal of Rheumatic Diseases, Indian Pediatrics, and many others. He is the author of the widely acclaimed book “Primary Immune Deficiencies Made Simple”, which has become a valuable guide for paediatricians and residents for clinical diagnosis and early detection of PID cases. His ongoing mission is to increase awareness, improve early diagnosis, and expand access to advanced immunology-based healthcare in India. He continues to mentor young doctors, actively speak at national and international forums, and contribute to clinical guidelines and evolving medical literature.

  • A proud member of elite national and international medical associations, including the European Society of BMT (EBMT), APSID, ISPID, PRSI, and the Indian Rheumatology Association, Dr. Bhattad remains closely aligned with global research and evolving treatment protocols. He is admired for his compassionate consultations, detailed diagnostic clarity, and supportive counselling to families navigating complex treatment decisions for their children.

  • With his vision to develop South India’s most advanced pediatric immunology centre, his clinical excellence, and his strong commitment to delivering compassionate and accessible care, Dr. Sagar Bhattad continues to be one of the best paediatric immunologists in Yelahanka, transforming paediatric care with innovation, dedication, and empathy.

    Talks & Publications

  • Authored a book, Primary Immune Deficiencies Made Simple: This book presents a clinical approach to diagnosis to various Primary Immunodeficiency diseases. It has been well acknowledged by the pediatric fraternity and medical residents for its simplicity of presentation and its utility in day-to-day practice. As a result of heightened awareness, many children are now being timely diagnosed and treated.
  • Bhattad S et al. Successful Haploidentical Transplant Using Post-Transplant Cyclophosphamide in a Child with Chronic Granulomatous Disease-First Report from the Indian Subcontinent. J Clin Immunol. 2021 May;41(4):820-824.
  • Bhattad S, Dinakar C, Pinnamaraju H, Ganapathy A, Mannan A. Chronic Mucocutaneous Candidiasis in an Adolescent Boy Due to a Novel Mutation in TRAF3IP2. J Clin Immunol. 2019; 39(6):596-599.
  • Bhattad S, Rawat A, Gupta A, Suri D, Garg R, de Boer M, Kuijpers TW, Singh S. Early Complement Component Deficiency in a Single-Centre Cohort of Pediatric Onset Lupus. J Clin Immunol. 2015 Nov;35(8):777-85.
  • Bhattad S, Unni J, Varkey S. MSMD in a 3-Generation Multiplex Kindred Due to Autosomal Dominant STAT1 Deficiency. J Clin Immunol. 2021 Jan;41(1):259-261.
  • Singh S, Bhattad S, Danda D. Genetics of juvenile idiopathic arthritis. Int J Rheum Dis 2014 Mar;17(3):233-6.
  • Saini AG, Sankhyan N, Bhattad S, Vyas S, Saikia B, Singhi P. CNS vasculitis and stroke in neonatal lupus erythematosus: a case report and review of the literature. Eur J Paediatr Neurol 2014 May;18(3):444-8.
  • Singh S, Bhattad S. Advances in pediatric rheumatology April 2013–March 2014. Int J Rheum Dis 2014 Jun; 17(5): 593-4.
  • Bhattad S, Rawat A, Suri D, Gupta A, Saikia B, Minz RW, Sodhi KS, Singh S. Budd-Chiari syndrome in a child with leukocyte adhesion deficiency - a rare association"". Pediatr Blood and Cancer 2015;62(12):2244.
  • Singh S, Bhattad S. Recent advances in pediatric rheumatology. Int J Rheum Dis 2015 Jun;18(5):568-9.
  • Sharma P, Arthi N, Bhattad S, Vaiphei K. Cystic fibrosis in a retro-positive child. Indian J Pathol Microbiol 2015 Apr-Jun;58(2):204-10.
  • Bhattad S, Gupta A, Suri D, Sharma D, Sinha A, Singh S. Piriformis syndrome in a young child – an unusual clinical entity. Indian J Pediatr 2015 Aug 21.
  • Singh S, Bhattad S, Gupta A, Suri D, Rawat A, Rohit M. Mortality in children with Kawasaki disease: 20 years of experience from a tertiary care center in North India. Clin Exp Rheumatol 2015 Nov 17.
  • Singh S, Bhattad S, Sharma D, Philip S. Recent Advances in Kawasaki Disease - Proceedings of the 3rd Kawasaki Disease Summit, Chandigarh, 2014. Indian J Pediatr.2015 Aug 30.
  • Sharma A, Gupta A, Mitra S, Nada R, Bhattad S, Singh S. Systemic Juvenile Idiopathic Arthritis with Amyloidosis: An uncommon complication with a favorable outcome. Indian J Pediatr 2015 Oct 7.
  • Rawat A, Bhattad S, Singh S. Chronic Granulomatous Disease. Indian J Pediatr. 2016 Feb 11.
  • Bhattad S, Vignesh P, Rawat A, Suri D, Gupta A, Vyas S, Singh S. Spondylodiscitis in a Boy with X-linked Agammaglobulinemia: an Unusual Occurrence. J Clin Immunol. 2016 Mar 10.
  • Singh S, Agarwal S, Bhattad S, Gupta A, Suri D, Rawat A, Singhal M, Rohit M. Kawasaki disease in infants below 6 months: a clinical conundrum? Int J Rheum Dis. 2016 Mar 16.
  • Vignesh P, Bhattad S, Singhal M, Singh S. A 5-year-old boy with only fever and giant coronary aneurysms: the enigma of Kawasaki disease? Rheumatol Int. 2016 May 6.
  • Vignesh P, Bhattad S, Shandilya JK, Vyas S, Garg R, Rawat A. Vertebral Osteomyelitis and Acinetobacter Spp. Paravertebral Soft Tissue Infection in a 4-Year-Old Boy with X-Linked Chronic Granulomatous Disease. Pediatr Infect Dis J. 2016 May 12.
  • Sharma A, Bhattad S, Kumar P. Prevalence of hypertension & prehypertension among school children. Indian J Med Res. 2016 Mar;143(3):376
  • Suri D, Sharma A, Bhattad S, Rawat A, Arora S, Minz RW, Singh S. Arthritis in childhood human immunodeficiency virus infection predominantly associated with human leukocyte antigen B27. Int J Rheum Dis. 2016 Jul 26.
  • Singh S, Bhattad S. Kawasaki disease incidence at Chandigarh, North India, during 2009-2014. Rheumatol Int. 2016 Aug 4. [Epub ahead of print]
  • Suri D, Bhattad S, Gupta A, Trehan A, Bansal D, Rajwanshi A, Das A, Rawat A, Singh S. Malignancies in Children with Human Immunodeficiency Virus Infection - Our Experience at Chandigarh, North India. J Trop Pediatr. 2017; 63(3):210-216.
  • Nada R, Matthews JL, Bhattad S, Gupta A, Singh S. Necrotizing Polyarteritis Nodosa-like Vasculitis in a Child with Systemic Lupus Erythematosus. Indian Pediatr. 2017;54(2):139-144.
  • Suri D, Bhattad S, Sharma A, Gupta A, Rawat A, Sehgal S, Singh S, Gupta S. Serial serum immunoglobulin (IgG) trough levels in patients with X-linked Agammaglobulinemia on replacement therapy with intravenous immunoglobulin: its Correlation with Infections in Indian Children. J Clin Immunol. 2017;37(3):311-318.
  • Vijayvergiya R, Bhattad S, Varma S, Singhal M, Gordon J, Singh S. Presentation of missed childhood Kawasaki disease in adults: Experience from a tertiary care center in north India. Int J Rheum Dis. 2017; 20(8):1023-1027
  • H Vinayak, Sujith Kumar T, GV Basavaraj, Bhattad S. Bilateral extensive CMV retinitis in a sick child – harbinger of severe combined immunodeficiency. JPCC 2017.
  • Rawat A, Sharma M, Bhattad S, Suri D, Gupta A, et al. C1QA gene mutations in a pediatric SLE cohort from North India, Molecular Immunology, Volume 89, 2017, Page 117, ISSN 0161-5890, https://doi.org/10.1016/j.molimm.2017.06.044.
  • Jindal AK, Bhattad S, Suri D, Singhal M, Gupta A, Singh P. Moyamoya Syndrome in a Child with HIV-1 Infection. Pediatr Infect Dis J. 2018 Jun;37(6).
  • Chari PS, Chandra P, Prasad S, Bhattad S. Chronic granulomatous disease presenting with small bone osteomyelitis in a young child: A case report. Indian J Pathol Microbiol. 2018 Oct-Dec;61(4):557-560.
  • Rikhi R, Bhattad S, Jindal A, Saikia B, Garg R, Rawat A, Suri D, Singh S. Monoclonal Gammopathy of Unclear Significance in a Child with Wiskott-Aldrich Syndrome: a Rare Occurrence. J Clin Immunol. 2019; 39(1):7-10.
  • Bhattad S. Mendelian Susceptibility to Mycobacterial Disease: A Clinical and Laboratory Approach. Ped Inf Dis. 2019; 1(1):34-36
  • Bhattad S. Primary Immune Deficiency. Pediatr Inf Dis.2019;1(2):68-69.
  • Bhattad S. “When to Suspect Primary Immune Deficiency in Office Practice?”. Acta Scientific Paediatrics. 2019; 10 (2): 128-130.
  • Raj E, Zainab S, Bhattad S, Ginigeri C, D Mahesh. Nutritional Challenges and Management in DiGeorge Syndrome. Acta Scientific Nutritional Health. 2019; 12 (3): 73-77.
  • Bhattad S. Lymphopenia and Immune Deficiency: Eyes See Only What the Mind Knows! Pediatr Inf Dis 2019;1(4):169–170.
  • Bhattad S. Neutrophil Counts—Too Less and Too Many—Both Can Be Immune Deficiency. Pediatr Inf Dis 2019;1(3):120–122.
  • Shinde S, Chinnappa J, Shenoy B, Kaur T, Bhattad S. Think out of the box! Pediatric onset adult Sarcoidosis in a young child presenting as Pyrexia of unknown origin. Int J Clin Rheumatol. 2020; 15(4): 131-132.
  • Bhattad S. B-cell Defects: A Clinical and Immunological Approach. Pediatr Inf Dis 2020;2(1):36–38.
  • Shenoy B, Singh S, Ahmed MZ, Pal P, Balan S, Viswanathan V, Bhattad S, Rao AP, Chaudhuri M, Shastri DD, Soans ST. Indian Academy of Pediatrics Position Paper on Kawasaki Disease. Indian Pediatr. 2020 Nov 15;57(11):1040-1048.
  • Sharma A, Naidu G, Sharma V, Jha S, Dhooria A, Dhir V, Bhatia P, Sharma V, Bhattad S, et al. Deficiency of Adenosine Deaminase 2 in Adults and Children: Experience From India. Arthritis Rheumatol. 2020 Sep 6.
  • Yadav RM, Gupta M, Dalvi A, Bargir UA, Hule G, Bhattad S, et al. Prenatal Diagnosis for Primary Immunodeficiency Disorders-An Overview of the Indian Scenario. Front Immunol. 2020 Dec 7;11: 612316.
  • Kambli PM, Bargir UA, Yadav RM, Gupta MR, Dalvi AD, Bhattad S, Ramprakash S, Cp Raghuram et al. Clinical and Genetic Spectrum of a Large Cohort of Patients With Leukocyte Adhesion Deficiency Type 1 and 3: A Multicentric Study From India. Front Immunol. 2020 Dec 16;11:612703.
  • Rawat A, Jindal AK, Suri D, Pandiarajan V, Gupta Anju, Saikia Biman, Bhattad S, et al. Clinical and Genetic Profile of X-Linked Agammaglobulinemia: A Multicenter Experience From India. Front Immunol. 2021 Jan 15; 11: 612323.
  • Vignesh P, Rawat A, Kumrah R, Singh A, Bhattad S, Ramprakash S, CP Raghuram, et al. Clinical, immunological and molecular features of Severe Combined Immune Deficiency: A multi-institutional experience from India. Front Immunol. (Provisionally accepted).
  • Rawat A, Vignesh P, Sudhakar M, Bhattad S, Ginigeri C, Kumar H, et al. Clinical, immunological and molecular profile of Chronic granulomatous disease: A multi-centric study of 236 patients from India. Front Immunol. (Provisionally accepted).
  • Saikia B, Rawat A, Minz RW, Suri D, Pandiarajan V, Jindal A, Bhattad S, et al. Clinical Profile of Hyper-IgE Syndrome in India. Front Immunol. 2021 Feb 26;12:626593.
  • Suri D, Rikhi R, Jindal AK, Rawat A, Sudhakar M, Vignesh P, Bhattad S, et al. Wiskott Aldrich Syndrome: A Multi-Institutional Experience From India. Front Immunol. 2021 Apr 16;12:627651.
  • Suri D, Rawat A, Jindal AK, Vignesh P, Gupta A, Pilania RK, Bhattad S, et al. Spectrum of Systemic Auto-Inflammatory Diseases in India: A Multi-Centric Experience. Front Immunol. 2021 Mar 19;12:630691.
  • Taur PD, Gowri V, Pandrowala AA, Iyengar VV, Chougule A, Golwala Z, , Bhattad S, et al. Clinical and Molecular Findings in Mendelian Susceptibility to Mycobacterial Diseases: Experience From India. Front Immunol. 2021 Feb 25;12:631298.
  • Bhattad S, Gupta S, Israni N, Mohanty S. Profile of Kawasaki disease at a tertiary care center in India. Ann Pediatr Cardiol. 2021 Apr-Jun;14(2):187-191.
  • Jindal AK, Patra P, Guleria S, Gupta A, Bhattad S, Rawat A, Suri D, Pandiarajan V, Bishnoi A, Dogra S, Singh S. Clinical profile, long-term follow-up and outcome of juvenile systemic scleroderma: 25 years of clinical experience from North-West India. Clin Exp Rheumatol. 2021 Jul-Aug;39 Suppl 131(4):149-156.
  • Mohite RS, Kotecha U, Bhattad S. Familial Cold Autoinflammatory Syndrome Type 1. Indian J Pediatr. 2021 Aug;88(8):834.
  • Joseph R, Mohite RS, Ginigeri C, Kumar H, Ka Sudheer, Bhattad S. Hypogammaglobulinemia and periodic fevers – Think of TRNT1 deficiency! Pediatr Hematol Oncol Journal,2021, ISSN 24681245,https://doi.org/10.1016/j.phoj.2021.06.002.

    • Overview

  • Dr. Sagar Bhattad is a highly skilled Paediatric Immunologist and Bone Marrow Transplant (BMT) specialist in Yelahanka. He is currently practising as the Lead Consultant – Paediatric Immunology, Rheumatology & Bone Marrow Transplant at Manipal Hospital Yelahanka, Bangalore, bringing over years of advanced clinical expertise in treating complex immune disorders, autoimmune diseases, rheumatic conditions, and paediatric bone marrow transplants. Recognised as one of the best paediatric immunologists in Yelahanka, he has pioneered specialised care for children with Primary Immune Deficiency Disorders (PIDs), juvenile arthritis, Kawasaki disease, paediatric lupus, autoinflammatory conditions, and bone marrow failure syndromes through evidence-based clinical practice, compassionate care, and global-standard transplant programs.

  • A trailblazer in his field, Dr. Bhattad is India’s first DM super-specialist in Paediatric Clinical Immunology and Rheumatology, trained at the prestigious Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. During his academic tenure, he received the Silver Medal in MD Paediatrics and the distinguished Major Gen Amir Chand Gold Medal for his groundbreaking research in pediatric lupus, highlighting his early contributions to clinical immunology. To further enhance his expertise, he trained at Europe’s largest Paediatric Immune Deficiency Transplant Centre, the Great North Children’s Hospital, Newcastle, UK, where he gained hands-on experience in advanced BMT methodologies, immune reconstitution, graft-versus-host disease management, and post-transplant rehabilitation. His global exposure strengthened his capabilities in performing complex bone marrow transplants for immunodeficiency syndromes, leukemias, rheumatic diseases with immune complications, and rare genetic disorders.

  • At Manipal Hospital Yelahanka, Dr. Bhattad established and leads the Centre of Excellence in Paediatric Immunology and Bone Marrow Transplant, which is among the region’s most specialised and trusted centres for childhood immune disorders. He has successfully diagnosed over 600 cases of Primary Immune Deficiency Disorders and performed multiple successful bone marrow transplants, significantly improving survival outcomes and enhancing access to specialized care for children. As one of the best paediatric immunologists in Yelahanka, he is revered by families and colleagues for his thorough clinical judgement, deep understanding of rare diseases, and empathetic approach to children requiring long-term, multidisciplinary medical care.

  • His areas of expertise span a wide spectrum, including Primary Immune Deficiency disorders, paediatric rheumatology, auto-inflammatory diseases, Kawasaki disease, systemic lupus erythematosus (SLE), juvenile idiopathic arthritis, recurrent infections, periodic fever syndromes, and paediatric transplant immunology. He is also an expert in haploidentical bone marrow transplants, stem cell transplants for genetic immunodeficiencies, post-transplant immune monitoring, and personalised immunomodulatory therapies. His advanced knowledge and precision-based treatment protocols help reduce complications, improve quality of life, and enhance long-term outcomes for children with complex immunological conditions.

  • Dedicated to academic excellence, Dr. Bhattad has authored over 80 peer-reviewed research publications in globally recognised journals such as Journal of Clinical Immunology, Clinical and Experimental Rheumatology, International Journal of Rheumatic Diseases, Indian Pediatrics, and many others. He is the author of the widely acclaimed book “Primary Immune Deficiencies Made Simple”, which has become a valuable guide for paediatricians and residents for clinical diagnosis and early detection of PID cases. His ongoing mission is to increase awareness, improve early diagnosis, and expand access to advanced immunology-based healthcare in India. He continues to mentor young doctors, actively speak at national and international forums, and contribute to clinical guidelines and evolving medical literature.

  • A proud member of elite national and international medical associations, including the European Society of BMT (EBMT), APSID, ISPID, PRSI, and the Indian Rheumatology Association, Dr. Bhattad remains closely aligned with global research and evolving treatment protocols. He is admired for his compassionate consultations, detailed diagnostic clarity, and supportive counselling to families navigating complex treatment decisions for their children.

  • With his vision to develop South India’s most advanced pediatric immunology centre, his clinical excellence, and his strong commitment to delivering compassionate and accessible care, Dr. Sagar Bhattad continues to be one of the best paediatric immunologists in Yelahanka, transforming paediatric care with innovation, dedication, and empathy.

    • Fellowship & Membership

  • Fellowship in BMT, European Society of BMT Certified (EBMT Diploma), European Society of Blood and Marrow Transplantation (EBMT)
  • Asia Pacific Society for Immunodeficiencies (APSID)
  • Indian Society for Primary Immune Deficiency (ISPID)
  • Indian Society for Kawasaki Disease (ISKD)
  • Pediatric Rheumatology Society of India (PRSI)
  • Indian Academy of Paediatrics (IAP)
  • Indian Rheumatology Association (IRA)

    • Field of Expertise

  • Bone Marrow Transplant
  • Primary Immune Deficiency disorders/Inborn Errors of Immunity
  • Kawasaki disease
  • Juvenile Arthritis
  • Pediatric lupus
  • Rheumatic diseases in children and adolescents
  • Auto-inflammatory diseases

    • Languages Spoken

  • English
  • Kannada
  • Hindi

    • Awards & Achievements

  • Silver Medal for MD Paediatrics, PGIMER, Chandigarh
  • Major Gen Amir Chand Gold Medal for research in Pediatric SLE
  • Moopens’ Clinical Excellence Award, 2025

FAQ's

Patients visit Dr. Sagar Bhattad, a leading Lead Consultant - Pediatric Immunology, Rheumatology & Bone Marrow Transplant at Manipal Hospitals Yelahanka - Bengaluru, for expert care and advanced treatments. Known for accurate diagnoses and patient centric care, Dr. Sagar Bhattad is a trusted choice for exceptional medical support.

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