Jan 24, 2016 Iron Ore in Orissa. The ores are rich in haematites. India’s richest haematite deposits are located in Barabil Koira valley. Others Sundargarh, Mayurbhanj, Cuttack, Sambalpur, Keonjhar and Koraput districts. Iron Ore in Chhattisgarh. Bailadila mine is the largest mechanised mine in Asia [Ore benefication only done here].