Neyveli Lignite Corporation Limited is a Navaratna company, Govt of India undertaking.
It has the largest open pit lignite mines in India. It has an installed capacity of 2740 MW. It was founded in 1956 and its headquarter is in Chennai. Apart from electricity generation it is into power distribution and renewable energy sources. The capacity of lignite mines is 28.5 million tons per annum at Neyveli.