* "Many-body methods and physics of atomic and many-atomic systems", at Indian Institute of Technology Kanpur - April 2015.
* "Prediction of electromagnons in BiFeO3 from atomistic first-principles simulations", in the American Physical Society Meeting, at San Antonio, USA - March 2015;
* "Finite-temperature properties of antiferroelectric PbZrO3", in the Workshop on Fundamental Physics of Ferroelectrics and Related Materials, at Knoxville, USA - January 2015;
* "Static and dynamic properties of PbTiO3 at finite temperatures" in the American Physical Society Meeting, at Baltimore, USA - March 2013;
* "Development of relativistic coupled-cluster theory to incorporate nuclear spin-dependent perturbations in the precision atomic theory calculations", in the International Conference on Theoretical and Applied Physics, at IIT Kharagpur, Kharagpur, India - December 2011.
* Gave a talk titled "Properties, simulations, and results of perovskite materials at finite temperatures", at
--Physical Research Laboratory, Ahmedabad,
--Jawaharlal Nehru Centre for Advanced Scientic Research, Bangalore,
--Institute of Mathematical Sciences, Chennai,
--National Institute of Science Education and Research Bhubaneswar,
--Indian Institute of Science Education and Research Kolkata, - April 2015;
* "Probe of physics using atomic structure calculations" at University of South Florida, Tampa, USA - March 2012;
* "Atomic many-body theories and parity violation",in the One Day Symposium, at Department of Physics and Meteorology, Indian Institute of Technology Kharagpur, Kharagpur, India - July 2011
* "Studies on the consequences of discrete symmetry violations in atoms" at Mohanlal Sukhadia University, Udaipur, India - October 2011;
* "Nuclear spin-dependent parity non-conservation using relativistic coupled-cluster" at Indian Association for the Cultivation of Science, Kolkata, India - July 2011.