received his MSc in physics from Aligarh Muslim University, Aligarh, India, in 1975 ; his PhD from Calcutta University, Kolkata, India, in 1979; and his DPhil from the University of Oxford, Oxford, UK, in 1983. He was also postdoctoral research fellow of the Royal Commission for the Exhibition of 1851 at the Clarendon Laboratory, University of Oxford, from 1983 to 1985. He was a fellow of Wolfson College, Oxford. He was atutor and lab instructor at Clarendon Laboratory. He was also a visiting fel-low with the Linkoping University, Linkoping, Sweden; Max Planck Instituteat Stuttgart, Germany. He joined Jadavpur University, Kolkata, in 1987 as areader in electronics and telecommunication engineering. Subsequently, he became a professor and the head of the Department of Physics, and dean of Faculty of Science Bengal Engineering Science University (BESU) during 1996–1999. Later he once again joined Jadavpur University ETCE Department as a professor. He has served as a visiting professor in many universities such as the Tokyo Institute of Technology, Japan and Hong Kong University, Hong Kong. Since 1999, he has been a professor with the Department of Electronics.