MTNL Mahanagar Telephone Nigam Ltd Litigation, disputes or regulatory action Announcement 2024 - Certificate Submission MTNL submitted Certificate under Regulation 74(5) of SEBI Regulations for the quarter ending June 30, 2024..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Mahanagar Telephone Nigam Ltd