Experience - (Academic & Research Position held)
- Director, CSIR-Central Scientific Instruments Organisation (CSIO), Chandigarh since July 02, 2015 to February 29, 2020
- Director, CSIR-Institute of Microbial Technology (IMTECH), Chandigarh from April 11, 2016 to January 22, 2017 (additional charge).
- Director, CSIR-Central Electronics Engineering Research Institute (CEERI), Pilani from November 06, 2015 to March 08, 2016 (additional charge).
- Outstanding Professor of Engineering Sciences of Academy of Scientiffic and Innovative Research (AcSIR-An Institute of National Importance) under CSIR, Govt. of India during July 2015 to February 2020.
- Professor of Applied Physics at Delhi College of Engineering (Faculty of Technology, University of Delhi), now Delhi Technological University-DTU since October 18, 2002.
- Head of Department of Applied Physics Department at Delhi Technological University, from March 2009 to July 2012.
- Dean (Industrial Research & Development) at DCE/DTUsince August 07, 2008 to August 31, 2010.
- Dean (Academic-UG) from January 01, 2015 to July 01, 2015.
- Chief Coordinator: TIFAC-Centre of Relevance & Excellence (CORE) in Fiber Optics & Optical Communication at Delhi College of Engineering” under the program “Mission Reach”, Technology Vision 2020, Technology Information Forecasting and Assessment Council, Department of Science & Technology, Govt. of India (www.tifaccore.dce.edu) since its inception in year 2004 to July01, 2015.
- Assistant Professor at Delhi College of Engineering-DCE (Faculty of Technology, University of Delhi) from December 31, 1998 to October 17, 2002.
- Assistant Professor at Regional Engineering College, now known as National Institute of Technology (NIT) at Hamirpur (H.P.), India, from October 17, 1994 to December 30, 1998.
- Lecturer, Birla Institute of Technology and Science (BITS) Pilani during January 1992-September 1994.
- Research Associate, Electrical Communication Engineering Department, Indian Institute of Science (IISc), Bangalore during April 1991- January 1992.
- Japanese Govt. Scholar (as Post Doctoral Research student) at Electronics Engineering Department, Kobe University, Japan during October 1989- March 1991.
- JRF and SRF (CSIR, Govt. of India) Indian Institute of Technology (IIT), Delhi during August 1984-September 1989.