ONGC Oil & Natural Gas Corpn Ltd Management Changes Announcement 2024 - Senior Management Change Three Executive Directors, Ravi, Rajesh Tiwary, and Mudit Kumar Mathur, are retiring due to superannuation effective November 1, 2024..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Oil & Natural Gas Corpn Ltd