BPCL Bharat Petroleum Corporation Ltd Other Situations Announcement 2026 - Trading window closure BPCL closes trading window for insiders from 1 April 2026 until 48 hours after FY26 Q4 results; Board meeting date for results to be announced later..Find Corporate Announcements for Press Releases, AGM, Insider Trading & SAST, Results and Corporate Action for Bharat Petroleum Corporation Ltd