Bachelor of Science, Ranchi University, 1982. Master of Science, Indian Institute of Technology, 1984. Doctor of Philosophy, Indian Institute of Technology, 1990.
Visiting scholar Osaka (Japan) University, 1989-1990, Kobe (Japan) University, 1990-1991. Research associate Indian Institute of Science, Bangalore, 1991-1992. Lecturer Birla Institute of Technology and Science, Pilani, India, 1992-1994.
Assistant professor Regional Engineering College, Hamirpur, India, 1994-1998. Assistant professor applied physics Delhi College Engineering/Delhi University, since 1999. Visiting scientist International Center Theoretical Physics, Italy, Iranian Organization Science and Technology, University Campirass, Sao Paulo.
Consultant telecom industries, India.
Fellow Optical Society India, Institution of Electronics and Telecommunication Engineers (Best Research Paper award). Member Institute of Electrical and Electronics Engineers, Laser and Electro-optic Society, Indian Society Technology Education (life), New York Academy of Sciences.
Married Neena Prasad, July 12, 1989. 1 child, Aman.