Dr. B. Sengupta is an Environmental Scientist, who has worked with Central Pollution Control Board (CPCB), Ministry of Environment and Forests, Government of India for more than 30 years in different capacity. He was the Member Secretary, CPCB for more than 10 years (1998-2008). He has also worked at University of Florida, Gainesville, USA on air quality management and control. He has vast experience in the field of Air and Water Quality Management, Industrial Pollution Control, Standard Development, Environmental Impact Assessment and Climate Change. Dr. Sengupta has published more than 250 technical reports while working in CPCB and also presented/published more than 50 papers in National and International peer reviewed Journals. He has also guided M.Tech and Ph.D. students of IIT-Delhi, JNU, Delhi University, School of Planning and Architecture.