He began climbing and trekking in the range around Mumbai, the Western Ghats. His first visit to the Himalayas was almost 40 years ago. His main contribution to Himalayan climbing has been to explore unknown areas and, in number of cases, to open up climbing possibilities. Among his major ascents are Devtoli (), Bandarpunch West (), Parilungbi () in 1995, and Lungser Kangri (), the highest peak of Rupshu in Ladakh. He led eight international joint expeditions, five with British, two with French and one with Japanese mountaineers, to high peaks, such as Rimo I (), Chong Kumdan Kangri I (), Sudarshan Parvat, Padmanabh (), and the Panch Chuli and Rangrik Rang groups.