MTNL Mahanagar Telephone Nigam Ltd Legal Disputes Announcement 2026 - Penalty by TRAI TRAI has levied a ₹8 lakh penalty on MTNL for QoS violations in June 2025; MTNL states there is no material impact on its financials or operations..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Mahanagar Telephone Nigam Ltd