1. Vice President of the Plasma Science Society of India (PSSI) (2006 - 2008).
2. General Secretary of the Plasma Science Society of India (PSSI) (2004 - 2006 ).
3. Chaired scientific sessions in 8 th Asia Pacific Plasma Theory Conference IPR, Gandhinagar, India 11-13 Dec (2007) INDIA.
4. Chaired scientific sessions in 1st NILES International Workshop on Lasers and Plasmas Joined with the 10 th Easter Plasma Meeting Cairo, Egypt 16-18 March 2008.