1)Invited Speaker “EMN Quantum in Vienna” 18-22 June (2016)
2)Local Organising member and Invited speaker “Advances in Quantum Theory” School of Physics and University of Hyderabad 25th 27th February 2013.
3)Attented “75 Years of Quantum Entanglement : Foundations and Information Theoretic Applications” January 6-10, 2011, Kolkata, India
4)Attented a “International Program on Quantum Information (IPQI-2010) “ from 10th Jan 28th Jan 2010, at Institute of Physics (IOP), Bhubaneswar, Orissa, India.
5)Presented a poster in “18 BRNS-DAE High Energy Symposium”, BHU, Varanasi, Dec 14-18 (2008).
6)Presented a poster in "International Symposium on Quantum Optics-2006", PRL, Ahmedabad, July 24-27 (2006).