ONGC Oil & Natural Gas Corpn Ltd Other Situations Announcement 2026 - Reg 74(5) Compliance ONGC reports SEBI Regulation 74(5) compliance certificate for Q3-2025, confirming dematerialisation status and depository record updates..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Oil & Natural Gas Corpn Ltd