MTNL Mahanagar Telephone Nigam Ltd Investments/Divestments Announcement 2023 - Debt MAHANAGAR TELEPHONE NIGAM LTD. has received in-principal approval from BSE for the issue of bonds worth Rs 6,661 Cr on a private placement basis for the financial year 2023-24..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Mahanagar Telephone Nigam Ltd