Administrative assignments at IIT Roorkee:
- Head, Department of Physics, IIT Roorkee, Jan 2011 – April 2014.
- Chairman, Standing Committee on Radiological Materials, since 2010.
- Chairman, Institute Lecture Series, IIT Roorkee, 2010-2015.
- Member, Group Purchase Committee, SRIC, since 2009.
- Member, Educational Planning and Research Committee, IITR until 2011.
- Chairman, Department Research Committee, 2008-April 2010.
- Member, Institute Library Advisory Committee, IITR, 2008-2010.
- Member, Institute Lecture Series, IITR, 2006-2009.
- Chairman, Department Purchase, Finance & Store Committee, 2005-2008.
- Member, Strategic Planning Group, IIT Roorkee, 2002-2006.
Some Significant national/international assignments:
- Member, TIFR-BARC Pelletron Linac Program Advisory Committee since 2023
- Editor, J. Phys.- Pramana, Indian Academy of Sciences, since 2022
- Guest Editor, European Physics Journal–ST, Vol. 233, No. 5, 2024 on “Nuclear Isomers”.
- Guest Editor, European Physics Journal–ST, Vol. 229, No.14-15, 2020 on “Role of Symmetries in Nuclear Physics”.
- Vice-president, Indian Association of Physics Teachers, 2019-2024.
- President, Indian Association of Physics Teachers, RC-5, Uttarakhand, 2016-2021.
- Member, PAC on Physical Sciences, DST, 2015-2018
- Member, Program Committee of SERB (DST) Schools in Nuclear Physics, 2017-2020.
- Member, PAC for Indian National Gamma Array, since 2006
- Chairman, PAC of SERB (DST) Schools in Nuclear Physics, 2011-2016
- Member, PAC, Nuclear Data Physics Centre of India, BARC, Mumbai.
- Member of Expert Committees of DST to evaluate mega science projects.
- Member, International Network of Nuclear Structure and Decay Data, IAEA, Vienna since 2006.