India’s top court has asked Tamil Nadu to comply with a green tribunal order allowing the restart of Vedanta’s copper smelter that has been shut since March, while also agreeing to hear the southern state’s appeal. The Supreme Court, in an interim ruling, has asked Tamil Nadu to comply with last month’s National Green Tribunal’s order, which said the state’s pollution board should grant Vedanta consent to operate its copper unit. Meanwhile, the top court will listen to an appeal by the state against the reopening of the plant before coming to a final decision.