The author has 55 years' experience in research, teaching and transfer of technology in Plant Pathology. Retired as Professor and Head of the Department of Plant Pathology, Punjab Agricultural University, Ludhiana, India in 2003 and then served there as Emeritus Scientist (ICAR, New Delhi, India) from July 2003 to July 2005. Taught various courses in plant pathology and plant bacteriology disciplines, including advanced courses in plant bacteriology. Guided 10 Ph. D. and 13 M. Sc. students in the field of plant bacteriology .

Published more than 125 research papers in reputed national and international research journals related to plant pathology and plant bacteriology. Life member of five professional societies and held different positions in the executive committees of these societies. Attended the VII International Conference on Plant Pathogenic Bacteria held in Budapest, Hungary in 1989 and the VIII International Conference on Plant Pathogenic Bacteria held in Versailles, France in 1992. As Member of the National Organising Committee, organised the IX International Conference on Plant Pathogenic Bacteria held in Chennai, India in 1996 and also chaired one session in this conference. Chaired/co-chaired various sessions of different professional societies, the Jeersannidhi Lecture Award and acted as member of panel of judges for Prof. M. J. Narasimhan Academic Award Contest.

Attended various national/international symposia, conferences, meetings and workshops of different professional societies. Acted as paper setter and external examiner of four universities and Agricultural Scientists' Recruitment Board, New Delhi. Acted as an expert of selection committees for different posts and as an external examiner of 17 Ph. D. and 10 M. Sc. students of different universities. Acted as reviewer/referee of various national and international research journals.