Mahanagar Telephone Nigam Limited (abbreviated as MTNL) (transl. Metropolitan Telephone Corporation Limited (MTCL)) is a wholly owned subsidiary of Bharat Sanchar Nigam Limited. Headquartered in New Delhi, India. MTNL provides services in the metro cities of Mumbai and New Delhi in India and in the island nation of Mauritius in Africa. It had a monopoly in Mumbai and New Delhi until 1992, when the telecom sector was opened to other service providers. "एमटीएनएल है, तो सही है" {"MTNL hai to sahi hai"} (Meaning: If MTNL is there, then everything is fine) & "Transparency makes us different" is its motto. As of May 2024, it has 1.92 million subscribers.

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