Thoothukudi, India — Vedanta said on Wednesday a sulphuric acid leak from a tank at its southern Indian copper smelter was severe and inaction could lead to serious environmental consequences. The district administration had said on Sunday the leak at the plant in the seaside town of Thoothukudi was minor, and steps were being taken to empty the storage tanks as a safety precaution. "There is a severe leakage in the pipe flanges and … the pipe flanges are submerged in the acid pool collected in the dykes around the acid storage tank," the company said in a petition to the Madras high court. The Tamil Nadu state government ordered a permanent closure of the plant and disconnected the power supply in May following protests over alleged pollution that turned violent and culminated in the police opening fire on protesters, killing 13 of them. Vedanta, the Indian subsidiary of London-listed Vedanta Resources, said it sought a limited reconnection of the electricity supply for maintenance...

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