MTNL Provides services in the metro cities of Mumbai and New Delhi in India and in the island nation of Mauritius in Africa.

MTNL announced in January 2012 that they will upgrade its 3G network to more advanced HSPA+ with download speeds up to 28.8 Mbit/s before the end of 2012.

MTNL began offering fibre-to-the-home (FTTH) triple play (voice, video, and data) high speed broadband service in Delhi on 9 November 2011.

[15] On 12 November 2013, MTNL announced that it would upgrade the speed of all its existing unlimited broadband plans in Mumbai to a minimum of 1 Mbit/s, at no additional cost.

[16] MTNL also provides other services such as VPN, VOIP, and leased lines through BSNL and VSNL.

Moreover, through joint ventures with local telecommunications providers, MTML planned to offer Internet access through its wireless network by February 2009.

On 23 October 2019, the Government of India announced revival package for BSNL and MTNL which includes monetising assets, raising funds, TD-LTE spectrum, voluntary retirement scheme for employees.

Apart from package, Ministry of Communications decided to merge of MTNL with Bharat Sanchar Nigam Limited.

[6][17][18] MTNL-STPI IT Services Ltd. is a 50:50 joint venture between Software Technology Parks of India (STPI) and Mahanagar Telephone Nigam Limited, (MTNL).

The company will now be entering into new business stream of international long distance operations and will be executing a project of submarine cable system, both east and west from India.

Looked upon as a privileged panel, the Telephone Advisory Committees (TAC), constituted by the Ministry of Communications and Information Technology (India) of the Government of India to serve as a vital feedback mechanism for improvement of services in the Telecommunications sector by the Department of Telecommunications.