MTNL Mahanagar Telephone Nigam Ltd Other Situations Announcement 2023 - Advertisement MAHANAGAR TELEPHONE NIGAM LIMITED (MTNL) has published a newspaper advertisement regarding a modification to addendum to resolution no.5 and resolution no.5 in the Notice of 37th Annual General Meeting of MTNL..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Mahanagar Telephone Nigam Ltd