Rajasthan State Mines & Minerals Limited (RSMML) is a public sector enterprise of the Government of Rajasthan and primarily engaged in Mining and Marketing of High Grade Rock phosphate, Lignite, Limestone & Gypsum (Non-Metallic minerals) through its mines located at various locations in Rajasthan.
Location of Coal Mines in India. Jharkhand leads in coal production and coal reserves in the country. The important coal fields are (i) Jharia, (ii) Giridih, (iii) North Karanpura, (iv) South Karanpura, (v) Ramgarh, (vi) Bokaro and, (vii) Daltonganj.
Mining - Lignite: The state of Rajasthan is endowed with large lignite deposits in the country after Tamilnadu & Gujarat. In the three districts of the state viz. Bikaner, Nagaur and Barmer, geological reserves of more than one billion tonnes have been confirmed so far by exploratory drilling.