He was former Professor and Head of Department of Applied Mechanics at the Indian Institute of Technology, Delhi until 1980 has the distinction of being appointed as UNESCO Expert and Chief Technical Advisor in the Middle East during 1980-1986. He rejoined IIT Delhi in 1987 as Professor in Educational Technology and rose to be the Head of the Centre until he left in 1998. He has had a distinguished career of doing his B.E. (Mechanical Engineering) with Distinction in 1960 from Delhi University, his M. E. (Applied Thermodynamics) in 1963 from Roorkee University, now IIT Roorkee, and he obtained his Ph. D. and DIC from the Imperial College of Science and Technology, London University in 1969 under the Colombo Plan Fellowship sponsored by the British Council, U.K. 
Currently, he is the Professor, having been the Head of Department of Industrial Design and Technology at the Faculty of Engineering and Technology, University of Botswana for over ten years. In his career span of four decades, Professor Kumar has published over 50 research papers in international journals, presented over 30 papers at International conferences throughout the world and coordinated international projects sponsored by the British Council, World Bank, AT & T, International Council of Distance Education, AICTE, ISTE and several other sponsors. He has been a visiting Professor at the University of Birmingham, UK and at the Southern Queensland University, Australia. He is also the recipient of National Award in Educational Technology by the Indian Society of Technical Education.