2005: Co-chairman of The 13th International Workshop on the Physics of Semiconductor Devices (IWPSD-2005) to be held at the National Physics Laboratory (NPL), New Delhi, India.
2005: Technical Chair for the MEMS and Sensors sessions in the upcoming IWPSD-2005.
Dec 2003: Chairman of The 12th International Workshop on the Physics of Semiconductor Devices (IWPSD-2003) held at the Indian Institute of Technology Madras, Chennai, India
1988: Chairman, Graduate Aptitude Test in Engineering (GATE).
1987: Vice Chairman, Graduate Aptitude Test in Engineering (GATE)
1986: Secretary, Graduate Aptitude Test in Engineering (GATE)
1984: Co-ordinator of a short term course on "Semiconductor Device Modeling and Technology" held under the Quality Improvement Program, Ministry of Education, Government of India.