Bharat Sanchar Nigam Limited (abbreviated BSNL) is a state-owned Indian telecommunications company based in New Delhi. It was incorporated on September 15, 2000 and assumed the business of providing telecommunications services and network management of the former Departments of Telecommunication Services (DTS) and Telecommunications Operations (DTO) of the Central Government as of October 1, 2000 on a continuity basis. It is the largest provider of fixed telephony and broadband services with over 60% market share, and is the fifth largest mobile phone provider in India. However, in recent years, the company's revenues and market share have plummeted, resulting in heavy losses as a result of intense competition in the telecommunication sector of India privatization.BSNL is the service provider of India's oldest communication and had a customer base of 93.29 million as of June 2015 It has footprints all over India, except Mumbai and New Delhi, where telecommunications are managed by Mahanagar Telephone Nigam (MTNL).
BSNL Mobile is a leading provider of GSM cellular mobile services under the Cellone brand. BSNL provides a complete solution for telecommunication services for enterprise customers, including MPLS, P2P and leased Internet lines. It provides fixed and fixed services using CDMA technology and its own extensive fiber optic network. BSNL provides Internet access services over dial-up connections such as prepaid, NetOne like Postpaid and DataOne as BSNL Broadband.