ONGC Oil & Natural Gas Corpn Ltd Management Changes Announcement 2026 - Appointment ONGC appoints two Executive Directors, Jagdamba Dobriyal and Ravinder Negi, effective 23 January 2026, to bolster senior management strength..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Oil & Natural Gas Corpn Ltd