After pursuing his graduation and Masters Program Sudip was associated with Global Voice Business in Reliance Globacom and Tata Comms. He has over 12 years of experience working on the Global voice innovation team. He also launched Reliance Passport and Reliance Global Call in the American and European Market. In his time with TATA he spearheaded the task of setting up a new division “Trading Desk” to take care of the growing demand of VoIP based carriers after VSNL and Teleglobe merged with TATA. He successfully managed a team of 7 people with more than 300 interconnects for Europe and Asia region.