Nepal, Conference, 10-12, December 2005, National Institute of Technology, Tiruchirappalli

Singapore, Member of Delegation to National University of Singapore, 04-07, May 2008, National Institute of Technology, Durgapur

United States of America, Research Collaboration, 07-11-2008 to 20-12-2008, National Institute of Technology, Durgapur

Indonesia, Conference, 19-21, March 2010, National Institute of Technology, Durgapur

Switzerland, Conference, 08-09, September 2011, National Institute of Technology, Durgapur

France, Conference, 12-13, October 2013, National Institute of Technology, Durgapur

Thailand, Conference, 15th February 2014, National Institute of Technology, Durgapur

Hong Kong, Conference, 25-27, August 2014, National Institute of Technology, Durgapur

Dubai, Conference, 22-23, May 2015, National Institute of Technology, Durgapur

Oman, Guest faculty, 05-10, December 2015, Caledonian College of Engineering,  Sultanate of Oman

Australia, Conference, 03-04, August 2016, National Institute of Technology, Durgapur

China, Conference, 05-06, September 2016, National Institute of Technology, Durgapur

Mauritius, Conference, 21-22, July 2017, National Institute of Technology, Durgapur

Phuket, Thailand, Conferenc, 20-25, February, 2023, National Institute of Technology, Durgapur