Bachelor of Science in Physics, Calcutta University, India, 1986; Master of Science in Physics, Jadavpur University, Calcutta, India, 1989; Doctor of Philosophy, Indian Institute of Technology Kanpur, India, 1997.
Project scientist VECC-KOLKATA, Salt Lake, Kolkata, India, 1990—1991. Research associate Indian Institute of Technology Kanpur, 1997—1999, Emory University, Atlanta, 1999—2000. Lecturer Barasat Government College, India.
Assistant professor Birla Institute of Technology and Science Pilani, since 2000. Assistant professor Birla Institute of Technology and Science-Pilani, since 2000.
Debashis is the son of Probhat Samir and Namita Bandyopadhyay. He married to Antara Samanta on September 28, 1979; They have a child: Breeti.