Tata Communications Limited is an Indian telecommunications company. Before its acquisition by Tata Group it was a government-owned telecommunications service provider and under the ownership of Department of Telecommunications, Ministry of Communications, and the Government of India. It was then sold to Tata Group in 2002 under the Third Vajpayee ministry government. Tata's communications provides network services and software-defined network platforms, such as Ethernet, SD-WAN, content delivery networks, the internet, Multiprotocol Label Switching, and private lines. It is listed on the Bombay Stock Exchange and the National Stock Exchange of India. Wikipedia