Tata Communications Limited is an Indian telecommunications company. It was a government-owned telecommunications service provider before being sold to the Tata Group in 2002 under the Third Vajpayee ministry government. The company 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