1.       A speaker in 22^nd World Hydrogen Energy Conference 2018 (WHEC2018) organized by International Association for Hydrogen Energy (IAH2) from 17-22 June, 2018 in Rio de Janeiro, Brazil.

2.       A research poster presentation in 10^th International Symposium of Fuels and Lubricants (ISFL) organized by the Research and Development Centre of Indian Oil Corporation Limited from 18-20 April, 2016 in Delhi, India.

3.       A research poster and oral presentation in 7^th International Workshop on "Sustainable Energy, Environment & Safety” organized by International Society for Energy, Environment and Sustainability (ISEES) from 21-23 December, 2015 in Lucknow.