Kumar, S. SPSI-Macro 2025, IIT-KGP, Kolkata (2025)
Kumar, S. Symposium on Polymer Science 2023, IISER Kolkata (2023) (Invited Talk)
Kumar, S. Indo-African International Conference on Emerging Materials Science and Technologies (IAFICEMST'2022), Durban University of Technology, South Africa (2022) (Invited Talk)
Kumar, S. International Online Conference on Nano Materials (ICN 2021), Mahatma Gandhi University, Kottayam, India (2021) (Invited Talk)
Kumar, S.; Binder, W. H. International Conference on Advances in Polymeric Materials & Human Healthcare, organized by Asian Polymer Association, at Goa, India (2019)
Kumar, S.; Bheemireddy, V.; De, P. National Symposium on Recent Advances in Chemistry & Industry, Indian Chemical Society, Kolkata, India (2015). (Young Scientist Award)
Kumar, S.; De, P. International Symposium on Polymer Science and Technology (Macro-15), Indian Association for the Cultivation of Science, Kolkata, India (2015).
Wade, J.; Kumar, S.; De, P.; Ramakrishnan, L. 2014 MRS Fall Meeting & Exhibit, Boston, USA (2014).
Kumar, S.; De, P. International Conference on Functional Materials, Indian Institute of Technology, Kharagpur, India (2014).
Kumar, S.; De, P. 1st Symposium on Advances in Sustainable Polymers, Indian Institute of Technology, Guwahati, India (2014). (1st prize in oral session)
Kumar, S.; De, P. International Conference on Surface Science and Nanotechnology in Biomedical, Pharmaceutical, Engineering Systems, Dharmsinh Desai University, Nadiad, India (2013).
Kumar, S.; De, P. Young Scientists’ Colloquium, Jadavpur University, Kolkata, India (2013). (MRSI Young Scientists’ Award)
Kumar, S.; De, P. 4th Indian Peptide Symposium, Saha Institute of Nuclear Physics, Kolkata, India (2013).
Kumar, S.; De, P. Department Day, IISER Kolkata, India (2012).