Joint Convener for Winter School on "Mathematical Modeling and Computational Methods" Nov 1997.
Delivered invited lecture on "Biomass Gasifier Energy System" in short term course on Non-conventional Energy System, 1998 at IIT, Kanpur.
Delivered invited lecture on "Thermo-chemical Conversion of Biomass" in short term course on Renewable Energy System, September 7-11, 2001, at IIT, Guwahati.
Convener, "Air Pollution & its control" QIP short-term course, Nov 2002.
Convener, "Innovation for Entrepreneurship", SIDBI sponsored Course, March 2003.
Convener, "Combustion generated emission & its control" QIP short-term course, 1st-5th March 2004.
Convener, "National Seminar on Combustion", 8th November, 2004.
Convener, "Non Conventional Energy Sources", IRDP sponsored short-term course, December 2005.
Convener, "Combustion and Spray", QIP short-term course, 3-7th December 2007.
Convener, "Computational Combustion", QIP short-term course, 28th February -3rd March 2012.
Convener, "1st National Seminar on Ancient Science and Technology", 9th March 2012>
Convener, "National Seminar on Burner Design and Development", 16th July 2013.
Convener, "Ancient Science and Technology", QIP short-term course, 10th -14th November 2014.
Convener, "2nd National Seminar on Ancient Science and Technology", 15th November 2013.
Convener, "Workshop on Skill Development for Leather Craft", 27-28th June 2015.
Convener, "Applied Combustion", short-term course, 13th -17th July 2015, in RDCIS, Ranchi.
Convener, 3rd National Seminar on "Ancient Indian Science and Technology", 14th October 2014.
Chairman, 4th National Seminar on "Traditional Indian Knowledge System, 16th December 2015
Chairman, 5th National Seminar on "Ancient Indian Science and Technology", 1st October 2016.
Chairman, Seminar on "Thermal Power Plants ‒ Present Scenario and Future Trends", 19th August 2017.
Chairman, Seminar on "Power with Zero Emissions and Zero Discharge", 28th October 2017.
Chairman, 6th National Seminar on "Ancient Indian Science and Technology", 17th February 2018.
Coordinator, short term course on "Supercritical Technology for Power Generation" in India, 20-24th June 2018.
Seminar chairman, 7th National Seminar on "Ancient Indian Science and Technology", 2nd November 2018.
Workshop chairman, National Workshop on "Inclusion of Indian Traditional Knowledge in Technical Education System", 7th September 2019.
Seminar chairman, 8th National Seminar on "Ancient Indian Science and Technology", 2nd November 2019.
Seminar chairman, All India Seminar on "Sustainable Energy Technologies", 8-9th February 2020.
Chairman, National Convention on "Aerospace Engineering", 7-8th November 2020
