Mining firm Vedanta Ltd. has received environment clearance for the expansion of its oil and gas operation in Rajasthan that would entail an investment of Rs. 12,000 crore, said an official circular. The proposal is to expand onshore oil and gas production from 3,00,000 BOPD (barrels oil per day) to 4,00,000 BOPD and 165 mmscfd (million standard cubic feed per day) to 750 mmscfd from the ‘RJ-ON-90/1’ block in Barmer and Jalore districts.PTI