The Tata-controlled Videsh Sanchar Nigam Ltd along with the group's IT and telecom companies including Tata Consultancy Services (TCS) and the Tata Teleservices will tap the global market jointly.
As VSNL can offer one of the world's largest voice, data and mobile-phone networks after its acquisition of Teleglobe International, TCS would provide platform solution for the implementations.
"It will be a purely business to business relationship. I have a capability and SAP or Oracle has another capability and we go to the market together," TCS CEO and Managing Director S Ramadorai told.
"In the same manner, VSNL has a capability and TCS has another one, we would combine and go to the market together," Ramadorai added.
We can take some of the network management services along with some of the competencies of Tata Teleservices and VSNL to offer data centre, disaster back up and large application, he added.
VSNL had recently completed its acquisition of Teleglobe international for $239 million to create one of the world's largest voice, data and mobile-phone networks.
The combined company covers some 240 nations and territories and has its eye on becoming a dominant provider of next-generation telecom services to major companies.