Previously he was a Reader in Ramakrishna Mission Vidyamandira, Belur Math, affiliated to the University of Calcutta, Kolkata, India. He graduated from University of Burdwan, Burdwan, India (1977), and did his postgraduation at the same university (1979) and topped at both levels. He was awarded his Ph.D. degree from the University of Calcutta (1989). He became a Life Member of the Indian Physical Society and the Plasma Science Society of India (PSSI). His field of interest includes nonlinear waves in plasma. He has published 18 books and about 60 research papers. He is actively involved in teaching for more than 29 years. Very recently he has published a text book on plasma physics entitled Basic Plasma Physics, Alpha Science International (2014), Cambridge, UK & Narosa Publishing House, New Delhi, India.