Ex Chairman, INSA, New Delhi, India
Emeritus Professor, Indian Institute of Technology, New Delhi, India
A.N. Bach Institute of Bio Chemistry, Russian Academy of Sciences, Moscow, Russia
Reacter, Francisk Skorina Gomel State University, Gomel, Belarus
Ex-Scientist, NPL, New Delhi, India
Ex-Scientist, CFTIR, Mysore, India
New Jersey Institute of Technology, USA
Vice Chancellor, Bundelkhand University, Jhansi, India
Purdue University, USA