10 biggest mining companies in India | Mining Global ...
May 18, 2017· The company has a number of mining operations focusing on phosphate, lignite, limestone and gypsum. The major activity of RSMML is the mining of Rockphosphate ore, with one of the largest mines in the country at Jhamarkotra. Jhamarkortra is a major player in contributing 98 percent of rock phosphate production in India.