Other Activities
- Founder Secretary of the International Institute IMBIC, having branches in Japan and Sweden
- Treasurer of Cryptology Research Society of India (since 2008)
- Worked as the Easter Zonal coordinator for NBHM, Department of Atomic Energy, Government of India, for MSc and PhD Scholarship Examinations
- Editor of the Journal of Pure Mathematics, University of Calcutta.
- Visited Japan (7 times), UK (3 times), Sweden (3 times), Switzerland (2 times), France (2 times), Belgium, Holland, Norway, Denmark, Italy, Korea, Malaysia (2 times), Singapore, Bangladesh, Bhutan, Russia, Thailand.
- Volume Editor of all the 12 Proceedings of the International Conferences MSAST 2007-2018.
- Convener of the Annual Event of the International Conference MSAST organized by the International Institute for Mathematics, Bioinformatics, Information Technology and Computer Science, with branches in Japan and Sweden.
- Worked as a paper setter, moderator, examiner of different examinations organized by different Universities and Institutes.
- Worked as Thesis Reviewer of PhD Thesis of different Universities.
- Worked as an external expert member of the Thesis Viva organized by different Universities.
- Worked as reviewers of leading journals such as AMS Mathscinet, Discrete Mathematics, Discrete Applied Mathematics, Design Codes and Cryptography, IEEE journals, IEICE, many other Springer and Elsevier Journals etc
- Worked as external Committee member of interview for the recruitment of Project Linked personnel at Indian Statistical Institute.
- Worked as External Member for the M.Tech (CS) and M.Math Dissertation of Indian Statistical Institute.