Professor, Department of Physics, Indian Institute of Technology Guwahati
Professor, Department of Physics, Indian Institute of Technology Guwahati, Assam, March, 2018 - continuing.
Associate Professor, Department of Physics, Indian Institute of Technology Guwahati, Assam, June, 2013 - March, 2018.
Assistant Professor, Department of Physics, Indian Institute of Technology Guwahati, Assam, May, 2007 - May, 2013.
Visiting Professor, McGill University, Montreal, Canada, June-December 2008
Post-Doctoral Fellow, SLAC, USA & University of Victoria, Canada, October 2003- May 2007.
Visiting Scientist, KEK, Tsukuba, Japan, September 2003.
Research Collaborator on E787 & E949 Experiments, Brookhaven National Laboratory (BNL), New York, USA, August 2000 - August 2003.
Member (nominated by the University Grants Commission (UGC)) of the Governing Council of Inter University Accelerator Centre (IUAC), New Delhi.
Member of the HEP Working Group for Mega Science Vision Document of India, Office of the Principal Scientific Advisor to the Govt. of India.
Member of the International Finance Board of the Belle II Collaboration at KEK, Japan.
Member of the DUNE Policy Committee.
Member of the Advisory Board for the SAND Consortium, DUNE Collaboration, Fermi Lab, USA.
Leading the DUNE-India group for developing the STT detector for the SAND ND of the Deep Underground Neutrino Experiment (DUNE).
On the experts panel of DST-SERB, India; The Netherlands Organization for Scientific Research (NWO), Netherlands, The Austrian Science Fund (FWF), Austria and Russian Science Foundation (RSF) to review projects in Particle Physics for funding.
Ph.D. examiner for IIT Madras, Chennai; CUSAT, Cochin; Hyderabad University, Hyderabad; Jadavpur University, Kolkata; Calcutta University; Gauhati University, Guwahati; Panjab University, Chandigarh; SVNIT, Surat; IISER Mohali; SINP, Kolkata; BARC, Mumbai; IMSc, Chennai; Jammu University; IIT Bombay, Tezpur University, IIT Indore.
Member of the International Advisory Committee of TIMP 2021, Assam Don Bosco University, Guwahati, February 26 - 27, 2021.
General Secretary of the Physics Academy of the North East (PANE), 2017 - 2021.
Convener of the XVI Workshop on High Energy Physics Phenomenology (WHEPP2019), IIT Guwahati, December 1 - 10, 2019.
Member of the Scientific Organizing Committee of "Pressing for Progress 2019: An IPA National Conference towards Gender Equity in Physics", University of Hyderabad, September 19 - 21, 2019.
On the national organizing committee of the “XI PANE Biennial Conference”, Assam University, Diphu Campus, November 21 - 23, 2018.
On the national organizing committee of the “7th Belle Analysis Workshop 2017”, MNIT, Jaipur, November 29 - December 3, 2017.
On the national organizing committee of the XXII DAE-BRNS High Energy Physics Symposium, Delhi University, Delhi, December 12 - 16, 2016.
On the national organizing committee of the 9th International Workshop on the CKM Unitarity Triangle (CKM2016), TIFR, Mumbai, November 28 - December 2, 2016.
On the national organizing committee of the “Belle Analysis Workshop 2015”, IIT Bhubaneswar, December 13-21, 2015.
Vice-Chair of the XXVII IUPAP Conference on Computational Physics 2015, IIT Guwahati, December 2 -5, 2015.
On the national organizing committee of the “Conference on current issues in Cosmology, Astrophysics and High Energy Physics”, November 2-5, 2015, Dibrugarh University, India.
Convener of the XXI DAE-BRNS High Energy Physics Symposium to be held at IIT Guwahati, December 8 - 12, 2014.
On the national organizing committee of the XX DAE-BRNS High Energy Physics Symposium, Visva-Bharati University, Santiniketan, January 13 - 18, 2013.
On the national organizing committee of the “Workshop on Synergy between High Energy and High Luminosity Frontiers”, January 10-12, 2011, TIFR, Mumbai, India.
On the national organizing Committee of the "Workshop on simulation & data analysis techniques for the high energy cosmic ray experiments", March 23-25, 2009, Gauhati University, Guwahati, India.
Organized the “XXIV SERC Main School in THEP”, Mar 2-21, 2009, Indian Institute of Technology Guwahati, Guwahati, India.
Organized a “Workshop on High Energy Physics: Particle, Strings & Cosmology (http://www.iitg.ac.in/hep/workshop08)", February 21-23, 2008, Indian Institute of Technol¬ogy Guwahati, Guwahati, India.
Member of the Department Research Committee (DRC) and Committee of Courses & Studies (CCS), Institute of Science and Technology, Gauhati University.
Served as a Review Committee member of several Belle and BaBar Physics analyses.
Served as the coordinator of the tracking and tracking efficiency group in BaBar since 2007.