Dr Sudhir Kalhan, Senior Consultant, Co-Chairman, Institute of Minimal Access Metabolic & Bariatric Surgery, Sir Ganga Ram Hospital Delhi, discusses problems related to obesity and the indications and guidelines for Weight Loss Surgery i.e. Bariatric Surgery. He speaks about advantages and disadvantages of Weight Loss Surgery. He describes two categories of weight loss surgery – Malabsorptive Surgery (Bypass Surgery) and Sleeve Gastrectomy. He also speaks about benefits of Minimal Access Surgery and Robotic Surgery for treatment of weight loss, hernia, gall bladder, appendix etc.