Oil and Natural Gas Corporation (ONGC)’s proposed sale of its stake in Mangalore Refinery and Petrochemicals (MRPL) to Hindustan Petroleum Corporation Ltd (HPCL) will have to be ratified by the cabinet, Petroleum Secretary B K Chaturvedi said. According to Infraline, HPCL has, in principle, agreed to sell its entire stake of around 17% in MRPL…