MTNL Mahanagar Telephone Nigam Ltd Investments/Divestments Announcement 2023 - Disclosure of Related Party Transaction MTNL (Mahanagar Telephone Nigam Ltd.) has submitted a disclosure of related party transactions for the half year ended 30th September, 2023..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Mahanagar Telephone Nigam Ltd