ONGC Oil & Natural Gas Corpn Ltd Management Changes Announcement 2024 - Management Change Rohit Madan and Laxma Reddy Chintapally, both Executive Directors at ONGC, are retiring due to superannuation effective December 1, 2024..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Oil & Natural Gas Corpn Ltd