Bharat Sanchar Nigam Limited (abbreviated BSNL) is an Indian state-ownedtelecommunications company headquartered in New Delhi, India. It was incorporated on 15September 2000 and took over the business of providing of telecom services and network management from the erstwhile Central Government Departments of Telecom Services (DTS) and Telecom Operations (DTO), with effect from 1October 2000 on a going concern basis. It is the largest provider of fixed telephony and broadband services with more than 60% Market share and sixth largestmobile telephony provider in India. However, in recent years the company's revenues and market share have plummeted into heavy losses due to intense competition in the Indian telecommunications sector. BSNL is India's oldest communication service provider and had a customer base of 93.29 million as of June 2015. It has footprints throughout India except for Mumbai and New Delhi, which are managed by Mahanagar Telephone Nigam (MTNL).
Bsnl Mobile is major provider of GSM cellular mobile services under the brand name Cellone. BSNL provides complete telecom services solution to enterprise customers including MPLS, P2P and Internet leased lines. It provides fixedline services and landline using CDMA technology and its extensive optical fiber network. BSNL provides Internet access services through dial-up connection as prepaid, NetOne as Postpaid and DataOne as BSNL Broadband.
BSNL offers value-added services, such as Free Phone Service (FPH), India Telephone Card (Prepaid card), Account Card Calling (ACC), Virtual Private Network (VPN), Tele-voting, Premium Rate Service (PRM), Universal Access Number (UAN). BSNL also offers the IPTV which enables customers to watch television through internet and Voice and Video Over Internet Protocol (VVoIP). In 2007, BSNL announced plans for providing 5 million broadband connectivity and secured 80% of the INR 25 billion rural telephony project of Government of India. On 20 March 2009, BSNL launched blackcherry services across India. BSNL paid Rs. 101.87 billion for 3G spectrum in 2010. As of 2011[update], BSNL offers coverage in over 800 cities across India. BSNL launched in 2012 a 3G wireless pocket router named Winknet Mf50. BSNL 3G provides HSPA+ service with highest speed of 21.1 Mbit/s downlink and 5.76 Mbit/s uplink.
BSNL announced the discontinuation of its telegram services from 15 July 2013, after 160 years in service. It was opened to the public in February 1855; it was upgraded to a web-based messaging system in 2010, through 182 telegraph offices across India.
BSNL is divided into a number of administrative units termed as telecom circles, metro districts, project circles and specialized units. It has 24 telecom circles, 2 metro districts, 6 project circles, 4 maintenance regions, 5 telecom factories, 3 training institutions and 4 specialised telecom units.