• B.Sc. Calcutta University
• M.Sc. Calcutta University
• Ph.D. Calcutta University
• Lecturer (1991-92) Department of Physics, Visva Bharati, Santiniketan, West Bengal.
• Faculty, Indian Association for the Cultivation of Science.
• Lecturer (1992-95), Senior Lecturer (1995-2000), Reader (2000-2005), Professor (2005-2009) , Head, Department of Materials Science (2007-2010), Senior Professor ( 2009- till now).
• Max Planck Institute of Microstructure Physics, Germany
• Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, Hungary.
• Institute of Solid State and Materials Research, Dresden, Germany