National Enterprises to expand Railkela Iron ore mining project located in Raikela village in Bonai taluk in Sundergarh district of Orissa. The proposed rated capacity of the mine is to be expanded from 25,000tonnes per annum (TPA) to 42,000TPA of iron ore. The total project cost is estimated at Rs. 4.2 million. There are two working pits namely the top pit and the middle pit. The ultimate working depth of mine will be 650m AMSL and the groundwater table is reported at 584m AMSL.