Bharat Sanchar Nigam Limited is an Indian central public sector undertaking, under the ownership of Department of Telecommunications, which is part of the Ministry of Communications, Government of India with its headquarters in New Delhi, India. The central public sector undertaking was established on 1 October 2000 by the Government of India. Its highest official is designated as Chairperson and Managing Director, who is a central civil service group 'A' gazetted officer from Indian Communication Finance Service cadre or central engineering service group 'A' gazetted officer from Indian Telecommunication Service cadre. It provides mobile voice and internet services through its nationwide telecommunications network across India. It is the largest government-owned-wireless telecommunications service provider in India.