1. Ph.D. – School of Physical Sciences, Jawaharlal Nehru University, New Delhi, India, (1996).
2. Associate Professor – Universiti Teknologi Malaysia, UTM Skudai, Physics Department, Faculty of Science (2010 – Continued).
3. Associate Professor – Addis Ababa University, Physics Department & Materials Science Program, Ethiopia, Africa in UN Programme (2004-2010).
5. Lecturer – Applied Physics Department, Guru Jambheshwar University of Science & Technology, India (1998-2003).
6. Reader – Applied Physics Department, Guru Jambheshwar University of Science & Technology, India (2003-2007).
7. Postdoctoral Fellow – Martin Fisher School of Physics, Brandeis University, USA (1999-2000).
8. Postdoctoral Fellow – Indian Institute of Technology, India & Oxford University, UK (1996-1998).
9. Research Associates – Council for Scientific & Industrial Research, India (1996).
10. Fellow of Theoretical Physics Seminar Circuit – India (1996).
11. Teaching Assistant – School of Physical Sciences, Jawaharlal Nehru University, New Delhi, India (1991).
12. National Eligibility Test (NET Qualified) – University Grants Commission /C.S.I.R, India, (1991).
13. Pre-Ph.D. Coursework – Jawaharlal Nehru University, India (First Class) (1991).
14. M. Sc. in Physics – Presidency College, Calcutta University, (Calcutta, India) (First Class) (1989).
15. B. Sc. in Physics (Honours) – Calcutta University, (Calcutta, India) (First Class) (1986).
16. State Level Merit Scholarship – Calcutta, West Bengal, India (1984-86).
17. Orientation Course – Academic Staff College, Jawaharlal Nehru University, India (1998).
18. Refresher Course – Academic Staff College, Jawaharlal Nehru University, India (2001).
2. Associate Professor – Universiti Teknologi Malaysia, UTM Skudai, Physics Department, Faculty of Science (2010 – Continued).
3. Associate Professor – Addis Ababa University, Physics Department & Materials Science Program, Ethiopia, Africa in UN Programme (2004-2010).
5. Lecturer – Applied Physics Department, Guru Jambheshwar University of Science & Technology, India (1998-2003).
6. Reader – Applied Physics Department, Guru Jambheshwar University of Science & Technology, India (2003-2007).
7. Postdoctoral Fellow – Martin Fisher School of Physics, Brandeis University, USA (1999-2000).
8. Postdoctoral Fellow – Indian Institute of Technology, India & Oxford University, UK (1996-1998).
9. Research Associates – Council for Scientific & Industrial Research, India (1996).
10. Fellow of Theoretical Physics Seminar Circuit – India (1996).
11. Teaching Assistant – School of Physical Sciences, Jawaharlal Nehru University, New Delhi, India (1991).
12. National Eligibility Test (NET Qualified) – University Grants Commission /C.S.I.R, India, (1991).
13. Pre-Ph.D. Coursework – Jawaharlal Nehru University, India (First Class) (1991).
14. M. Sc. in Physics – Presidency College, Calcutta University, (Calcutta, India) (First Class) (1989).
15. B. Sc. in Physics (Honours) – Calcutta University, (Calcutta, India) (First Class) (1986).
16. State Level Merit Scholarship – Calcutta, West Bengal, India (1984-86).
17. Orientation Course – Academic Staff College, Jawaharlal Nehru University, India (1998).
18. Refresher Course – Academic Staff College, Jawaharlal Nehru University, India (2001).