Neyveli Lignite Corporation Ltd.

http://www.nlcindia.com/

Neyveli Lignite Corporation Limited (NLC) is a government-owned lignite mining and power generating company in India. NLC operates the largest open-pit lignite mines in India, presently mining 24 MT of lignite and has an installed capacity of 2,740 MW of electricity.
It also supplies a large quantity of sweet water to Chennai from the artesian aquifers in the lignite mines. On 11 April 2011, it joined the elite group of Navratna Companies. In 1956 NLC was formed as a Corporate body.
NLC is listed on BSE:513683 as well as NSE:NEYVELI LIG. The Union Government holds 93% shares of NLC and is administered through Ministry of Coal.
NLC is currently in the news due to its disinvestment plans and the indefinite strike by its 27000 employees and workers since 5 July 2013