Events Attanded
- Personally conducted / presided over more than 169 Seminars and Workshops in major cities of the country, under the aegis of National Telematics Forum, Telematics India, INFOTEK and Foundation for Amity and National Solidarity.
- Led delegation and had interaction with the Joint Parliamentary Commission headed by Mr Sharad Pawar presenting the views to help formulate Broadcasting Policy in August 1997 and also recommended its Convergence as part of Communication.
- Mr. Trehan attended the premier International Telecommunication Union Conferences and Exhibitions held in Geneva from 1975 till 1995.
- He has also attended various International Forums. He has contributed papers on the subject of Telecommunication and presided over Seminars in Sydney with International Computers & Communications (I.C. & C)
- Mr Trehan was the sole invitee from India for the Silver Jubilee meeting of the I.C. & C in Paris for interaction with the then EEC and other Countries Delegates
- Mr Trehan attended the World Economic Forum meetings in Davos (Switzerland) for 6 years from 1987 to 1992. World Economic Forum being the premier international body has given him opportunity to interact with several top business magnates of the world as well as government leaders besides meetings with internationally reckoned faculty.