May 2010 –Till date - EditorialBoard Member– Pramana –J. of Physics
Sept 2006 - COE Professor, Tohoku University, Sendai, Japan
Mar 03-May 03 - JSPS Visiting Professor, Nagoya City University, Nagoya, Japan
Apr 98-Sept 98 - Senior Research Associate, Illinois Institute of Technology, Chicago, USA
April 95-Dec 9 - Visiting Scientist, Central Laboratory, Osaka, Japan
1. Indian Physics Association
2. Materials Research Society of India.
3. Indian Laser Physics Association
4. Photonics Society of India
5. Indian Society for Surface Science and Technology