Dr. Mahendra Narwaria is a pioneer in Indian bariatric surgery. He has completed over 10,000 bariatric operations to date. He is recognised as a bariatric surgery centre of excellence. He has been named the Times Group’s 2019 health icon. With a 25-year legacy, his patients have access to all bariatric surgical procedures under his supervision.

• Postgraduate in General Surgery – B J Medical College, Ahmedabad, (1996)
• Surgical Gastroenterology and Laparoscopic Surgery – Sanjay Gandhi Post-graduate Institute (SGPGI), Lucknow

Dr Narwaria has achieved:

Limca Book of Records

1. For the youngest bariatric patient aged 4 years and 10 months
2. For operating on 20 patients in a day in 2014
   • Recognized as “Gujarat Gaurav” and a 2019
     Times Health Icon
   • Awarded as the Bharat Navratna in 2023

Dr Narwaria is the pioneer in

• First Laparoscopic Sleeve Gastrectomy in India-2004
• First Scar less Sleeve Gastrectomy in India-2009
• First Hybrid NOTES (Trans Vaginal) Sleeve Gastrectomy in Asia Pacific region
• Highest weight patient had Gastric bypass surgery performed (Weight-248 kg- 214 kg)-1st time in India
• Pioneer in new procedure after revision of RYGB
• Metabolic Surgery for Hypercholesterolemia in lean patients

Dr Narwaria is the pioneer of bariatrics surgery in india and has performed

• 20,000+ Bariatrics, GI, Robotic & Laparoscopic Surgeries
• 1 Lac+ OPDs
• Covered 400+ Cities around the world
• Served in 50+ Countries
• Attended 400+ Conferences
• Organized 25+ Conferences
• 75+ national and international publications
• International Faculty at 15+ institutions
• Invited to 65+ workshops
• Taken part in 30+ Live Demonstrations

Celebrating 25+ years of experience in the medical field and

• Serving the society
• Spreading good health and smiles
• Teaching the true meaning of healthy living
• Bestowing a brighter future for one and all
• Capacity building and training of surgeons across India & Overseas

In this journey of 25 years, Dr Mahendra Narwaria has been:

• 2002 – Founder of OSSI
• 2002 – Treasurer and Secretary of OSSI
• 2009-2013 – President of OSSI
• 2009 – Member Governing Council- IFSO, Member Credential Committee – IFSO
• 2010 onwards – Guest Editor-Journal of Video Surgery (Poland)
• 2012 onwards – Representing India – Asia Pacific at IFSO-APC
• 2015-2017 – Member of the Executive Committee -IASG
• 2016 onwards – Editorial Board member of Diabetes & Obesity International Journal (DOIJ)
• 2017-2018 – IAGES- Executive Board Member
• 2020 onwards – Representing India- Asia Pacific IFSO-APC
• 2022 – National President- AIAARO
• 2022 – Vice President – AIAARO of the Gujarat Chapter
• 2023 – Re-presented WHO Ward Obesity Federation (Asia Specific)
• Trustee at OSSI

Dr Narwaria has been associated with:

• Shery Hospital, Ahmedabad (1999-2006)
• Sterling Hospital, Ahmedabad (2001-2013)
• Narayan Hrudalaya, Bangalore (2005-2006)
• Apollo Hospital, Ahmedabad (2006-2013)
• Artemis Hospital, Delhi (2009-2010)
• Breach Candy Hospital, Mumbai (2017-Present)
• Sir Ganga Ram Hospital (From January 2022-Present)

1. Global 30-day outcomes after bariatric surgery during the COVID-19 pandemic (GENEVA): an international cohort study. Rishi Singhal , Abd A Tahrani , Christian Ludwig , Kamal Mahawar ,Mahendra Narwaria, GENEVA collaborators. The Lancet Diabetes & Endocrinology DOI:10.1016/S2213-8587(20)30375-2;2021
2. OSSI (Obesity and Metabolic Surgery Society of India) Guidelines for Patient and Procedure   Selection for Bariatric and Metabolic Surgery. A G Bhasker , A Prasad , P Praveen  Raj , M  Narwaria , S Shah , R Khullar. Obesity Surgery (2020) DOI: 30:2362–2368.
3. Trends and progress of Bariatric and Metabolic Surgery in India Aparna Govil Bhasker, Arun Prasad, P. Praveen Raj, Randeep Wadhawan, Manish Khaitan, Abhay Jugal Agrawal, Om Tantia, Sarfaraz J. Baig, Raj Palaniappan, H. V. Shivaram, Sumeet Shah, Mahendra Narwaria. Updates in Surgery 72(9945); April 2020
4. Sump syndrome following choledochoduodenostomy. Dhaivat Vaishnav, Mahendra Narwaria.Formosan Journal of Surgery 53(5):195;January 2020
5. Circulatory Omentin-1 levels but not genetic variants influence the pathophysiology of Type 2 diabetes. Nirali Rathwa , Roma Patel , Sayantani Pramanik Palit , Shahnawaz D Jadeja , Mahendra Narwaria, A V Ramachandran , Rasheedunnisa Begum.Cytokine 119DOI:10.1016/j.cyto.2019.03.011Project: Genetic association studies in Type II Diabetes; 2019.
6. Standardisation of Bariatric Metabolic Procedures: World Consensus Meeting Statement. Mohit Bhandari ,Mahendra Narwaria & M. A. L. Fobi  & Jane N. Buchwald .Obesity Surgery 29(4):309–345, 2019.
7. CAN CHILDREN WITH GENETIC SYNDROME BE OFFERED BARIATRIC SURGERY? Mahendra Narwaria, MS, GI.Surgery for Obesity and Related Diseases 14(11): S95; November 2018
8. Is Bariatric Surgery to be offered in Adolescence? Mahendra Narwaria, Surgery for Obesity and Related Diseases 14(11): S191 ;2018
9. Laparoscopic excision of retro pancreatic retro portal schwannoma.Dhaivat Vaishnav, Riddhi Solanki, Mahendra Narwaria;2017.
10. Chapter 118, Bariatric & Metabolic Surgery Mahendra Narwaria, Ahmad Jan.Textbook of Surgical Gastroenterology (2 Volumes) (pp.1311-1311) DOI:10.5005/jp/books/12748_119;2016
11. Réponse à l’article récent de Blot C. et al.  Conservative surgical management of persistent leak after sleeve gastrectomy by Roux-en-Y gastro-jejunostomy to the fistulous orifice  Ramon Vilallonga, Mahendra Narwaria.Journal of Visceral Surgery 152(5). 2015
12. Randomised Double-Blinded Trial of Laparoscopic Gastric Imbrication V Laparoscopic Sleeve Gastrectomy at Single Indian InstitutionSunil Sharma, Mahendra Narwaria, Daniel R. Cottam & Samuel CottamObesity Surgery (2015)25:800-8004, DOI 10.1007/s11695-014-1497-2;2015
13. A Systematic Review of Bariatric Surgery in Patients with Liver Cirrhosis.  Ahmad Jan, Mahendra Narwaria , Kamal K Mahawar, Obesity Surgery 25(8),May 2015.
14. Insulinoma: Case Report and Review of Diagnostic and Treatment Modalities:Sudhendu Patel, Mahendra Narwaria, Deepal Parekh, Vidhi Shah; JAPI(2012)Volume 61 ISSN 0004-5772
15. IFSO-APC consensus statements 2011.Kazunori Kasama, Wilfred Mui, Mahendra Narwaria and Pradeep Chowbey,Obesity Surgery 22(5):677 (2012) PMID 22367008.
16. Tuberculosis after laparoscopic Roux-en-Y gastric bypass for morbid obesity. Lakshman S Khiria and Mahendra Narwaria,Surgery for Obesity and Related Diseases 7(3):323 (2011) PMID 20727834
17. Gastric imbrication for morbid obesity: Early result of new technique.Mahendra Narwaria and Avinash K Tank Surgery for Obesity and Related Diseases 6(3):S47 (2010) 
18. Autosomal recessive hypercholesterolemia and bilio-pancreatic diversion: A case report.Mahendra Narwaria and Lakshman S Khiria Obesity Research & Clinical Practice 4(2):e157 (2010)
19. A prospective randomised, controlled study comparing low pressure versus high pressure pneumoperitoneum during laparoscopic cholecystectomy.Vismit Pradyumna VP Joshipura, Narwaria M, Sanjiv P SP Haribhakti, and Rashmi Thakkar Surgical Laparoscopy, Endoscopy & Percutaneous… 19(3):234 (2009) PMID 19542853
20. Cefoperazone-sulbactam for treatment of intra-abdominal infections: results from a randomised, parallel group study in India.Abhijit Chandra, Puneet Dhar, and Manjula Schou, Mahendra Narwaria, Surgical Infections 9(3):367 (2008) PMID 18570578
21. Prospective Randomised Trial of Cefoperazone-Sulbactam Versus Ceftazidime Plus Amikacin and Metronidazole in the Treatment of Intra-Abdominal Infections: 1013 Subodh Varshney,A. Chandra,Puneet Dhar,Satish Dharap,M Narwaria.The American Journal of Gastroenterology 101:S399;2006
22. Laparoscopic Bariatric Surgery.M Narwaria,M.Manisegaran .Book Chapter.