Head Examiner, JEE and GATE.

Member, Senate Committee for the development of the curricula of the UG and PG courses of IIT Kharagpur.

Convener, 1^st year chemistry syllabus committee. 

Member, Committee to prepare workpaper on attracting brighter people in basic research.  

Member, Committee to frame modalities for training students from                         Regional Engg. Colleges. 

Member of several department level committees like Departmental Administrative Committee, Departmental Academic Committee etc. Faculty Advisor of the M. Sc. Students (5 years) and the departmental representative for the Training & Placement 

Member, Doctoral Scrutiny Committees of several research scholars in Chemistry, Physics, Mathematics and Elect. Engg.

Paper-Setter and Examiner, M. Sc examinations of various universities.

Ph.D thesis examiner: Jadavpur University, Madras University, Bombay University, Visva-Bharati, Kalyani University, Bharathiar University, Osmania University, Nagarjuna University, BARC, IACS, IICT, CLRI, BESU, IIT KGP, Pune University, Calcutta University, IIT Bombay, NCL, IIT Kanpur, HBNI, Bharathidasan University, Burdwan University, IISc Bangalore, Central University of Hyderabad, SNBNCBS.

Judge, Jawahar Lal Nehru National Science Exhibition 1997, 2006.

Helped the UGC Chemistry Panel and the Curriculum Development Committee in formulating the M. Sc. Elective Course on "Computer Applications to Chemistry".

Developed softwares for electronic structure and dynamics calculations as well as of analyzing quantum chaos. Designed M.Sc. physical chemistry laboratory experiments. 

Seminar -in -charge, Department of Chemistry, IIT Kharagpur.

Time Table-in-charge, Department of Chemistry, IIT Kharagpur.

Guide KVPY, Govt. of India.

Guide Summer Projects, Indian Academy of Sciences,Bangalore, S. N. Bose National Centre for Basic Sciences, Kolkata, Indian national Science Academy, New Delhi and National Academy of Sciences, Allahabad.

Member, Anti-ragging squad.

Prof-in-charge, Departmental Library & Departmental Representative, Central Library. Annual Report, IIT Newsletter, etc.

Incharge, PC Lab.

Coordinator, 1st year chemistry course.

Taught students (classes VIII & XI) of D.A.V Model School.

Nominated Senate Member (before becoming a Professor).

Published several "Letters to the Editor" in the Bengali Magazine, "Desh".

Coordinator (Science Group): Institute Lecture Series Committee.

Member, Institute Committee to frame a guideline for the Award for Excellence in Teaching.

Member, Institute Committee to examine the mechanism to reward faculty members who excel in research projects and consultancy.

Member, Institute Committee to make a draft on the ethical code of conduct for research in IIT Kharagpur.

Member, Syllabus Committee, The National Institute of Science Education and Research, Bhubaneswar, Central University of Jharkhand, Ranchi.

Member, Equivalence Committee, IIT Kharagpur.

Convener, Institute Lecture Series (Science), IIT Kharagpur.

External member, Board of Studies, National Institute of Technology, Jamshedpur.

Member, Committee to review the mechanism of Conferring Distinguished Alumnus Awards, IIT Kharagpur.

Elected member, Nomination Council for the Infosys Prize, 2009.

Member, Teachers Academy .

Member, Institute Committee to frame the details of the School on Computational Engg.

Member, Institute Committee to frame the details of the School on Biosciences.

Member, Academic Committee, Diamond Jubilee Celebration of  IIT Kharagpur.

Elected member to nominate, Russian corporation of Nanotechnologies,Award 2009.

Elected member to nominate, Boltzmann Award, 2009.

Chairman, A Disciplinary Action Committee, IIT Kharagpur.

Member, Various Academic/ Administrative Committees, IIT Bhubaneswar.

Member, International Quantum Trajectory Workshop Committee.

Member, Various national Committees including that in IITs, NITs, CSIR-Laboratories, Universities, NISER, BARC etc.

Member, Monitoring Committee, IIT Kharagpur.

Member, MOU Senate Sub-Committee, IIT Kharagpur.

Member, Convocation Committee, IIT Kharagpur.

Member, Institute Committee to examine and to recommend disposal of waste and the utilization of the space available, IIT Kharagpur.

Responsible Academic Staff Member, Cooperation Agreement between IIT Kharagpur and Ghent University, Belgium.

Member, Research Programme Evaluation Committee, IIT Kharagpur.

Member, Committee to consider ways and means to attract good Graduate and Research Students from abroad, IIT Kharagpur.

Expert, Faculty (extension of service); Burdwan Univ., Kalyani Univ., (Selection); IIT Ropar, IIT Hyderabad, Shibani Inst. Technol. (Bhubaneswar).