Sasken Communications Ltd., Bangalore

    Banyan Networks Pvt. Ltd., Chennai

    Polaris Software Lab Ltd., Chennai

    Jataayu Software (P) Ltd., Bangalore

    n-Logue Communicatons Pvt. Ltd., Chennai

    HTL Ltd., Chennai

    Shyam Telecom, New Delhi

    Tejas Networks Pvt. Ltd., Bangalore

    Midas Communication Technologies Pvt. Ltd.

    I-softech Private Limited

    NMSWorks Private Limited

    Bharat Sanchar Nigam Limited, New Delhi

    Videsh Sanchar Nigam Limited, Bomabay

    National Research Development Corporation (NRDC), New Delhi for three years.

Advisory board/Governing council

    Member of the Governing Council of AU-KBC Centre for Internet & Telecom Technologies, Anna University, Chennai, 2000 - Present

    Member of the Panel of Experts for the Investment of UTI Venture Capital Fund, Bangalore, 2000 - 2002

    Member of the Apex Committee of the Incubation Centre at IIT Kanpur, 2000 - Present

    Member of Advisory Council of Nadathur S. Raghavan Centre for Entrepreneural learning (NSRCEL), IIM Bangalore, 2001-present.

    Member of the Technical Advisory Board of Media Lab Asia, IITKanpur, 2001-present

    Member of the ICICI Venture's Advisory Board, Mumbai, 2001

    Member of Council of Scientific and Industrial Research (CSIR). Governing Body, Department of Science and Industrial Research (DSIR), Delhi.

    Advisor on the Information Technology Committee of Directors of Punjab National Bank - September, 2002

    Member of the Advisory Committee for Shanti Swarup Bhatnagar Prize (2002) in engineering Sciences.

    Member of the Advisory Committee for the book titled "Disruptive Technologies :The Indian Contribution" - Tata sons Limited, Mumbai, October, 2002.

    Member of an Inter- Ministerial Advisory Committee, Universal Service Fund (USF), Department of Telecommunications, New Delhi, December, 2002

    Member of the Working Group on Flow of Credit to SSI Sector, Reserve Bank of India, Mumbai, 2003-04