Explanation:

 The major activity of RSMML ( Rajasthan State Mine and Mineral Limited ) is the mining of Rockphosphate ore. It operates one of the largest and fully mechanised mines in the country at Jhamarkotra, 26 Kms. from Udaipur and Kanpur Group of Mines located 15 Kms. from Udaipur.

In India the economy being predominantly based on agriculture, the fertiliser production plays a pivotal role. Only about 35% to 40% of the requirement of raw material for phosphatic fertilser production are being met through indigenous sources and the rest is met through import in the form of rock phosphate, phosphoric acid & direct fertilisers. In such a situation Jhamarkotra plays an important role by contributing 98% of rock phosphate production of India.