Some important responsiblities held at IIT Guwahati:
· Dean of Faculty Affairs (Oct. 2011 to Sept. 2014).
* Dean of Administration (Aug. 2006 to Dec. 2008).
* Dean of Students’ Affairs (Mar. 2006 to Aug. 2006).
* Head, Dept. of Physics (Jan. 2003 to Mar. 2006).
* Chairman, JEE – 2003.
* Vice Chairman, JEE-2002 and JEE-2001.
Some important responsibilities held/being held outside IIT Guwahati:
* Member, Board of Governors, NIT Mizoram (2014-2016).
* Member, Board of Governors, NIT Agartala (2014-2017).
* Member, Board of Governors, IIIT Guwahati (2014-2015).
* External Member of Academic Senate of I.I.T. Patna (2012-2014).
* Executive Committee Member, Magnetics Society of India since 2012.
* Member, Scientific Review Committee, IRIS (A DST-CII-INTEL Initiative) since Sept. 2011.
* Member, Executive Committee, Fast Track Young Scientist Scheme (Mathematical & Physical Sciences), DST, India, since April 2011.