• Member, American Society of Mechanical Engineers

• Member, Institution of Engineers (India)

• Member, National Computer Graphics Association (1983-84)

• Reviewer, Transactions of ASME

• Reviewer, Mechanism and Machine Theory

• Reviewer, CSIR Journal of Science & Technology

• Examiner, Union Public Service Commission, New Delhi

• Member, Selection Board, Defence Research & Development Organization, New Delhi.

• Reviewer, Journal Of Institution of Engineers (India)

• Member, Selection Committee, I.I.T. Bombay

• Member, Selection Committee, I.I.T. Delhi

• Member, Selection Committee, I.I.T. Knapur

• Member, Selection Committee, Aeronautical Development Agency, Bangalore

• Member, Selection Committee, I.I.T. Guwahati

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