IEEE Offices Held :
 Vice Chair Technical Activities of IEEE India Council since 2019.
 Chairman of the IEEE Kolkata Section since 2016 to 2018
 Chair-Elect of the IEEE Calcutta Section, from 2015 to 2016
 Vice Chairman of the IEEE Calcutta Section, from 2012 to 2014
 Treasurer of the IEEE Calcutta Section, from 2006 to 2008
 Chairman of the IEEE IAS Calcutta Chapter, from January 2012 to 2014
 Vice Chairman of the IEEE IAS Calcutta Chapter, from 2002 to 2011
 Secretary of the IEEE IAS Calcutta Chapter, from 1998 to 2002
 Founder Chairman of the IEEE IAS Calcutta Chapter, India in 1997 (Prof. Biswas took the initiative to collect signatures from IAS members in Calcutta to form the IAS Calcutta Chapter in 1997)
Member of IEEE Committees:
 Member of the Balloting Group for the IEEE Standard 519-1992
 Was a member of the International Sub-committee on Industrial Power Conversion
 Reviewer for IEEE Transactions
Served / Serving other Professional bodies:
1) Was a member of the Executive Committee of the Calcutta Chapter of the Institution of Electr. & Telecom. Engrs.(I).
Organization of Seminars/Workshops
1. Served as Track Chair and Session Chair in several national and international conferences.
2. Member of the Organising Committee on the Seminar on ‘Energy, Environment and Power Electronics’, May 1997, organised by the School of Energy Studies, Jadavpur University and the IEEE, Calcutta Section.
3. Organised the Seminar on Intelligent Tools in Electrical Systems (ITES 2006) sponsored by UGC under CAS-III, in March 2006.
4. Organised the Workshop on Power Electronics Applications, sponsored by TEQIP at Electrical Engg. Department, Jadavpur University in Jan 2008.
5. Member of Technical Committee of IEEE INDICON 2010 at Jadavpur Univerity.
6. Member of the Advisory Committee of the 3rd National Power Electronics Conference in 2007, Bangalore
7. Member of the Advisory Committee of the 5rd National Power Electronics Conference in 2011, Kolkata.
8. Member of Steering Committee for IEEE bi-annual conference PEDES
9. General Chair for the IEEE Kolkata Section flagship conference CALCON in 2017, Kolkata.
10. Co-General Chair for the IEEE Region 10 Conference TENSYMP 2019, Kolkata.
11. Technical Program Chair for the IEEE Kolkata Section flagship conference CALCON in 2020, Kolkata.