1) National Workshop and Conference on Discrete Mathematics and its applications (NWCDMA-2014), Department of Mathematics, Jadavpur University, Kolkata, March 10-14, 2014.
2) International Conference on Llinear Algebra and its Applications (ICLAA-2014), Department of Statistics, Manipal University, Manipal, December 18-20, 2014.
3) Annual Conference of Orissa Mathematical Society, Department of Mathematics, Vyasanagar College, Jajpur, February 2015.
4) National Level Workshop on Graph Theory: Algebraic and Algorithmic Aspects (GTA3-2016), Department of Mathematics, Aliah University, Kolkata, December 19-24, 2016.
5) International Conference on Recent Advances and Applications in Pure and Applied Mathematics (ICRAAPAM-2025), Department of Mathematics, Khalisani Mahavidyalaya, Chandannagar, April 25-26, 2025.
6) National Conference on Emerging Trends in Mathematical Sciences: Analysis, Modelling, Computation and Algebra (NCETMS-AMCA-2026), Department of Mathematics, Jadavpur University, Kolkata, March 12-13, 2026.