Dr. Sagar Bhattad

Consultant - Paediatric Immunology, Rheumatology and Bone Marrow Transplant

MD (Paediatrics), DM (Paediatric Clinical Immunology and Rheumatology), EBMT Diploma, Fellowship in BMT

Speciality

Paediatric Rheumatology & Immunology, Paediatrics & Neonatology

Hospital

Aster CMI Bangalore, Aster RV Bangalore, Aster MIMS Calicut, Aster Women & Children Bangalore

Languages

English, Kannada, Hindi

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Overview

Dr. Sagar Bhattad is India’s first DM super-specialist in Pediatric Clinical Immunology and Rheumatology, trained at the prestigious Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh. During his academic tenure, he was awarded the Silver Medal in MD Pediatrics and the Major Gen Amir Chand Gold Medal for his groundbreaking research on complement deficiency in pediatric lupus.
A pioneer in Immunology-focused Bone Marrow Transplants (BMT) in India, Dr. Bhattad has played a key role in the diagnosis and management of Primary Immune Deficiency Disorders (PIDs). His passion for immune deficiencies has made him a sought-after speaker at national and international forums.

Dr. Bhattad has been instrumental in establishing the Center of Excellence in Pediatric Immunology and Bone Marrow Transplant at Aster CMI Hospital, Bangalore, which is among the few centers in India recognized by the Foundation for Primary Immunodeficiency (FPID), USA. Under his leadership, Aster CMI has conducted one of the highest numbers of immune deficiency transplants in the country.

In 2025, he was honored with The Moopen’s Clinical Excellence Award, the highest clinical recognition within the Aster Group, acknowledging his exceptional contributions to medicine and research.

To further hone his expertise, Dr. Bhattad trained as an observer at The Great North Children’s Hospital, Newcastle, UK—Europe’s largest center for Pediatric Immune Deficiency Transplants—where he gained insight into the latest BMT techniques. This experience continues to shape and enhance outcomes in complex immunological transplants at his center.

Dr. Bhattad’s clinical interests also include Kawasaki disease, and he follows one of the largest pediatric cohorts with this condition in South India.

He has authored over 80 peer-reviewed publications in leading journals such as the Journal of Clinical Immunology, Clinical and Experimental Rheumatology, International Journal of Rheumatic Diseases, Indian Pediatrics, and many more. His work has been presented at several prominent national and international conferences.

Dr. Sagar Bhattad envisions building South India’s largest Immunology center, committed to affordable diagnostic and transplant care for children with immune deficiencies.

Area of expertise

Bone Marrow Transplant
Primary Immune Deficiency disorders
Kawasaki disease
Juvenile Arthritis
Pediatric lupus
Rheumatic diseases in children and adolescents
Auto-inflammatory diseases

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.

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 [Epub ahead of print]
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 [Epub ahead of print]
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. [Epub ahead of print]
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
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. [Epub ahead of print]
Rawat A, Bhattad S, Singh S. Chronic Granulomatous Disease. Indian J Pediatr. 2016 Feb 11. [Epub ahead of print]
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. [Epub ahead of print]
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. [Epub ahead of print]
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. [Epub ahead of print]
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. [Epub ahead of print]
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. [Epub ahead of print]
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 [Epub ahead of print].
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, 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. 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.
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.
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, Raghuram CP, Porta F, Ramprakash S. 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, 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