He has travelled to virtually every hamlet of Kumaon and Garhwal, and his knowledge of the Himalaya is widely acknowledged to be encyclopaedic. He is an indefatigable mountain-walker who has been traversing 1100 kilometres on foot once every decade, starting in the village of Askot on the Nepal border in the east and ending in Arakot in Himachal Pradesh. He established the People’s Association for Himalaya Area Research (PAHAR) in 1983 and is the author, with Uma Bhatt, of Asia ki Peeth Per (On Asia’s Back), a biography of the Himalayan explorer Pandit Nain Singh Rawat. He has published numerous pamphlets and several issues of the journal Pahar over the years. He has also been a professor of History at Kumaun University, Nainital, and Fellow at the Centre for Contemporary Studies, Nehru Memorial Museum and Library, New Delhi. He was awarded the Padma Shri in 2007.