At present only lignite mines are operated by NLC India Limited (NLCIL). Lignite is produced by NLCIL from various operational mines: three Lignite Mines at Neyveli, Tamilnadu and one Lignite Mine at Barsingsar, Rajasthan.

Year Lignite Production in Lakh Tonnes (LT) Value of Lignite produced in Rupees Crore
2015-16 254.51 5700.00
2016-17 276.17 6994.85
2017-18 251.53 5515.76

NLCIL is an integrated company and most of its lignite produced is used for captive consumption in its lignite fired thermal power plants. A small quantity of raw lignite is being sold to meet the requirement of surrounding small scale industries and lignite is supplied to an Independent Power Producer (250 MW) by way of a Fuel Supply Agreement.