OSSI is a not for profit, member based body of bariatric and metabolic surgeons in India. As a scientific organization, it brings together other clinical experts such as Anaesthesiologists, Endocrinologists, Psychiatrists, Dieticians, Nurses, Physical Trainers, etc. also within its ambit for the cause of treating morbidly obese patients. OSSI aims to support its members in aspects directly related to their profession, to optimize outcomes of treatments offered to severely obese patients. The association’s activities are focused on skill enhancement, information exchange and knowledge sharing on surgical treatments for obese patients. It helps present new techniques, research, concepts to its members, who are experts in the field. OSSI today organizes member meetings annually to facilitate networking, learning and knowledge sharing amongst its members.