Life Member, Asiatic Society, India.
Co-Convener, WG-19, ISO/IEC JTC1/SC7 India Mirror Committee.
Member, ISO/IEC JTC1/SC7 India Mirror Committee.
Senior Member, International Association of Computer Science and Information Technology
Member, IEEE Computer Society
Member, IEEE Communications Society
Member, Association for Computing Machinery
Member, Administrative Committe, IEEE Computer Society, Calcutta Chapter, India
Member, Academic Committee, Centre for Distributed Computing, Jadavpur University