1. SERB school on Tokomaks and Magnetised Plasma Fusion, Institute for Plasma Research (Gandhinagar) – 25th Feb to 15th March, 2013
2. “Study of Electric Potential in a magnetised Electronegative Plasma” PLASMA-2013, KIIT, Bhubaneswar, Odisha, 2013.
3. “Influence of filter magnetic field on the co-extracted electron current in a Negative Ion Extraction system” , PLASMA-2013, KIIT, Bhubaneswar, Odisha, 2013.
4. “Electric Potential in a Plasma Consisting of Finite Temperature Negative Ions Produced from Cs- Coated Dust Particles”, PLASMA-2014, M.G.University, Kottayam, Kerala.
5. “Potential formation in volume produced negative ion sources with closed and open magnetic field structures”, NSNCP-2015, IASST, Guwahati.
6. “Effect of Closed magnetic field in the potential structure of negative ion plasma with dust particles”, PSC-2015, Jadavpur University, Kolkata, WB.