Multiple choice Manglore Refinery and Petrochemicals Ltd. is a subsidiary of BPCL IOC GAIL ONGC Reveal answer Fill a bubble to check yourself D Correct answer Explanation Mangalore Refinery and Petrochemicals Limited (MRPL) is a subsidiary of the Oil and Natural Gas Corporation (ONGC). ONGC acquired a majority stake in the company in 2003, making it a key part of its downstream operations.