Chhattisgarh Environment Conservation Board, Raipur has granted to Sarda Energy & Minerals Ltd, the Consent to Operate under Water (Prevention and Control of Pollution) Act, 1974 and Air (Prevention and Control of Pollution) Act, 1981, for expansion of production capacity of Coal Washery of the Company at Raigarh (C.G.) from 0.96 MTPA to 1.8 MTPA.