Joined the Indian Forest Service in March 1977. Served as Under Secretary, Rehabilitation Division, Ministry of Home Affairs, Government of India (1984-87), Deputy Conservator of Forest, Government of Goa (1987-92), Conservator of Forest and Member Secretary, State Pollution Control Board, Government of Mizoram (1992-95), Principal, State Forest Service College of Ministry of Environment and Forests at Dehradun (1995-17), Director Forest Education, Ministry of Environment and Forests at Dehradun (1997-2000), Conservator of Forest and Chief Wildlife Warden, Government of NCT Delhi (2002-03), Chief Conservator of Forest and Special Secretary, Environment of Forests, Government of India in the Andaman and Nicobar Islands (2005-08), Addl. PCCF and Chief Wildlife Warden, Arunachal Pradesh (2008-2009), PCCF and Principal Secretary, Environment of Forest and Principal Secretary, Information and Communication Technology, Government of Mizoram (2009-2012), Additional Director General of Forest Wildlife; Director, Wildlife; MoEF and nodal officer for CITES India, Government of India (2012-13), Director General of Forest and Special Secretary, MoEF (2013-15).

Other educational qualifications include MBA with specialisation in Financial Management from Indira Gandhi National Open University, New Delhi; Diploma in Rural Development from Indira Gandhi National University, New Delhi; PhD in Biotechnology with special reference to the potential of traditional knowledge in plants in Biotechnology from Guru Gobind Singh Indraprastha University, New Delhi.

Appointed to the National Green Tribunal as an Expert Member on January 13, 2016.