| 1. |
Amity University |
Advisor & Honorary Professor |
September 2018- present |
| 2. |
I.I.T. Roorkee |
Senior Professor (HAG); Emeritus Fellow |
Jan 2013- June 2015; July 2015- June 2018 |
| 3. |
I.I.T. Roorkee |
Full Professor |
June 2001- Dec. 2012 |
| 4. |
-do- |
Professor & Head |
Jan. 2011 – April 2014 |
| 5. |
University of Roorkee |
Associate Professor |
April 1996-May 2001 |
| 6. |
-do- |
Reader |
Aug 1994- March 1996 |
| 7. |
-do- |
Lecturer (Sr.) |
Sept 1992-July 1994 |
| 8. |
-do- |
Lecturer |
Sept 1979- Aug 1992 |
| 9. |
B.H.U. |
Research Associate |
J Jan 1978-Aug 1979 |
| 10. |
Brookhaven Natl. Lab |
Visiting Scientist |
July-Aug, 1986 |
| 11. |
Florida State University |
Research Associate |
Aug 1987-July 1988 |
| 12. |
Florida State University |
Research Associate |
June 1989-Aug 1989 |
| 13. |
McMaster University |
Visiting Scientist |
June 1997-Aug 1997 |
| 14. |
McMaster University |
Visiting Professor |
May 2004-June 2004 |
| 15. |
McMaster University |
Visiting Professor |
June 2005 |
| 16. |
Kuwait University |
Visiting Professor |
Session 2005-06 |
| 17. |
Kuwait University |
Visiting Professor |
March 2007 |
| 18. |
Yangon Univ, Myanmar |
Visiting Professor |
July-Aug 2005 |
| 19. |
IST, Lisbon, Portugal |
Visiting Professor |
June 2007 |
| 20. |
NNDC, Brookhaven National Laboratory |
Visiting Scientist |
June 2008 |
