Fellow, Indian National Science Academy, New Delhi

Fellow, Indian Academy of Sciences, Bangalore.

Fellow, The National Academy of Sciences, India, Allahabad.

Fellow, West Bengal Academy of Science & Technology.

Fellow, The World Academy of Sciences (TWAS) http://onlinelibrary.wiley.com/doi/10.1002/ange.201400895/full

J. C. Bose National Fellow.

Institute Chair Professorship Award

Council Member, Chemical Research Society of India.

University Gold Medal.

Bardhaman Sammilani Medal.

Indian National Science Academy Young Scientist Medal.

Chemical Research Society of India Bronze Medal (2000).

Chemical Research Society of India Silver Medal (2014).

B. M. Birla Science Prize.

Dr. B. C. Deb Memorial Award ( Indian Science Congress Association ).

Member, American Chemical Society.

Member, Research Board of Advisors, American Biographical Institute.

Associate, Indian Academy of Sciences, Bangalore.

Member, Editorial Board, J. Chem. Sci. (Proceedings of the Indian Academy of Sciences, Bangalore).

Member, Editorial Board, J. Assam Sci. Soc. (Assam); Canadian J. Pure & Appl. Sci.

Member, Editorial Board, J. Mol. Struc.(Theochem).

Member, Editorial Board, Ind. J. Chem. Section-A.

Member, Editorial Board, Comp. Theor. Chem.

Selected as the 'Top Reviewer' of The Journal of Physical Chemistry, American Chemical Society., 2006.

Member, Fonds Wetenschappelijk Onderzoek - Vlaanderen (Research Foundation - Flanders),Belgium.

Member, Nomination Council, Russnano Prize, Russia.

Member, Nomination Council, AVRA Chemical Award.

Elected member, Nomination Council for the Infosys Prize.

Senate Member IISER (Kolkata).

Course Director, Science Academies’ Refresher Course in Recent Advances in Chemistry 14–26 December 2015.

Member, Joint Science Education Panel of the Three Science Academies of India.

Membership Award, American Chemical Society.

Member, Nomination Panel, Ahmed Zewail Prize, Elsevier.

Member, Nomination Panel, Boltzmann Award.

Member, Nomination Panel, The journal of Physical Chemistry Lectureship Awards, ACS.

Member, Selection Panel, NASI-SCOPUS Young Scientist Award.

Member, Selection Committee, INSA.

Convener, Kharagpur Local Chapter, INSA.

Member, Examiners Panel, UGC_Faculty Recharge Programme.

Member, Key Opinion Leaders Panel, Nature Collections (Nature Publishing Group).

IAAM (International Association of Advanced Materials) Medal presented in the European Advanced Materials Congress held in Stockholm, Sweden during August 23-25, 2016.

One of his papers appears in the list of top 20 highly cited papers from all the IITs taken together.

Member, Editorial Advisory Board (EAB), Journal of Physical Chemistry Letters / A/ B/ C.

Distinguished Visiting Professor: IIT Bombay

Acharya P. C. Ray Memorial Award, by Indian Chemical Society (ICS)