1. PIRE-ECCI/ICMR Summer Conference on Heterogeneous Catalysis, at University of California, Santa Barbara, August 2006.
2. ICMS-ICMR Winter Conference on Chemistry and Physics of Materials at JNCASR, Bangalore, December 2006.
3. National Review and Coordination Meeting on Nanoscience and Nanotechnology, DST, Government of India, February 2007.
4. Swiss Chemical Society Fall Meeting at EPFL, Lausanne, Switzerland, September 2009.
5.Catalysis Centre for Energy Innovation Spring Symposium, Newark, Delaware, March 2011.
6. 21st National Symposium on Catalysis, IICT, Hyderabad, February, 2013.
7. Invited Speaker in XXXIII Annual Conference of Indian Council of Chemists, ISM - Dhanbad, December, 2014