· Member on TIFAC committee for the panel on Electronics & Communication, New Delhi, 1995-96

    · Member of the Task Force on Future Technology Forecast for India for 2020, TIFAC, New Delhi, 1995-96

    · Member on the Sectional Committee on Electronics & Communications of Indian National Academy of Engineering (INAE), New Delhi, 1997-98

    · Member of Expert Committee in the area of Optoelectronics/Photonics, Department of Electronics, New Delhi, 1993 - 1996

    · Member of Research Council Committee, CEERI, Pilani, 1994 - 2000

    · Member of the Task Fource on Telecommunications, Technology Information, Forecasting and Assessment Council (TIFAC), New Delhi, 1995 - 1996

    · Member of Research Advisory Committee, K.K.Birla Academy, New Delhi, 1995 - Present

    · Member of 9th Plan Study Team on Electronics Materials, Department of Electronics, New Delhi, 1996 - 1998

    · Treasurer - PPST Foundation, 1985 - 2000

    · Member of the Working Group on "HRDE", Department of Electronics, New Delhi, December 1996 - 1997

    · Member of Board of Studies in Electronics & Communication Engineering for Andhra University, Visakhapatnam, 1996 - Present

    · Member of the Engineering Sciences Research Committee, CSIR, New Delhi, 1998 - Present

    · Member of the Centre for Telecom Policy Studies (CTPS), IIM, Ahmedabad, 1998 - Present

    · Member of Selection Committee for the Swarnajayanti Fellowships Award, 1999 - 2000

    · Member of Programme Advisory Committee (PAC) of Electrical, Electronics, and Computer Engineering, DST, New Delhi, 1999 - Present

    · Member of IT Task Force for Uttranchal, Dehradun, 1999 - 2000

    · Member of the Board of Studies, University of Madras, 1999 - 2002

    · Member of the Knowledge Network for Augmenting Grassroots Innovation (KnowNet-Grin), IIM Ahmedabad, 2000 - Present

    · Member of the Working Group on Information Technology for Masses, MIT, New Delhi, 2000.

    · Chairman of the Steering Committee of the Photonics Development Programme of MIT, New Delhi, 2000 - Present

    · Chairman of the National Advisory Committee of ISRO, Ahmedabad 2001 - PresentMember in the Research Advisory Committee, Centre for Indian Knowledge Systems, Chennai, 2001 - Present

    · Member of Committee contstituted to evolve a Mission on Information Security by the Principal Scientific Advisor (PSA), Govt. of India, 2001 - Present · Member of Development Council for Telecom Sector, Ministry of Communications, New Delhi, 2001 - Present

    · Member of Development Council for Telecom Sector, Ministry of Communications, New Delhi, 2001 - Present

    · Member of the Advisory Committee for Technology Information, Forecasts and Assessment Cell of the MIT, New Delhi, 2001 - Present

    · Member of the Task Force for Information Technology, Government of Tamil Nadu, Chennai, 2001 - Present

    · Member of the Working Group on Information Technology Sector for the Tenth Five Year Plan (2002-2007)

    · Member of the Working Group on Telecom Sector for the Tenth Five Year Plan (2002-2007)

    · Chairman of the Advisory Committee, Information Technology Institute for the Tribes of India (ITITI) Dehradoon, 2001 - Present

    · Member of the Task Group for Industry-academia level links in Telecommunication between India and UK (2001 - 2006)

    · Chairman of Inter Departmental of Technical group for Satellite Systems ¾ IT Task force.

    · Chairman of the Confederation of Indian Industry Tamil Nadu Task Force on Industry-Institute-Interaction, 2003-2004

    · Member of SPIE India Chapters, 2003-2005

    · Member of IT Task Force, Government of Rajasthan, Jaipur - 2004

    · Advisory Committee Member at Nabard, Mumbai

    · "National Focus Group on Educational Technology" at National Educational Research and Training, New Delhi.

    · Member on the "Emerging Markets Advisory Board (EMAB) for Microsoft Research India, New Delhi

    · Member of the Scientific Advisory to the Prime Minister (SAC-PM) for the year 2005.