MW Second Thermal Power Station consists of 7 units of 210 MW each. In February 1978, the Government of India sanctioned the Second Thermal Power Station of 630 MW capacity (3 X 210 MW) and in February 1983, the Government of India sanctioned the Second Thermal Power Station Expansion from 630 MW to 1470 MW with addition of 4 units of 210 MW each. The first 210 MW unit was synchronized in March 1986 and the last unit (Unit-VII) was synchronized in June 1993. The power generated from Second Thermal Power Station after meeting the needs of Second Mine is shared by the Southern states viz., Tamil Nadu, Kerala, Karnataka, Andhra Pradesh and Union Territory of Puducherry. Thermal Power Station I - Expansion Thermal Power Station-I has been expanded (2 x 210 MW) using the lignite available from Mine-I expansion. The scheme, TPS I Expansion, was sanctioned by the Government of India in February 1996. Unit-I was synchronized in October 2002 and Unit-II in July 2003. The power generated from this Thermal Power Station, after meeting the internal requirements, is shared by the Southern States viz., Tamil Nadu, Kerala, Karnataka, and Union Territory of Puducherry. Barsingsar Thermal Power Station The Government of India sanctioned the Barsingsar Thermal Power Station 250 MW (2 X 125 MW) in October 2004. The units were commissioned in December 2011 and in January 2012. The power generated from this Thermal Power Station after meeting internal requirements is shared by the DISCOMS of the state of Rajasthan. Thermal Power Station II - 1st Expansion This Project is consisting of two units of 250 MW capacity each. Unit-II attained commercial operation in April 2015 and Unit-I in July 2015. The lignite requirement is met through expansion of Mine-II. The steam generators of this project employ eco-friendly Circulating Fluidised Bed Combustion (CFBC) technology. This technology has been adopted for 250 MW capacity units for the first time in India. Gallery Mining projects NLC has four open cast lignite mines, namely, Mine I, Mine II, Mine IA and Barsingsar Mine. The lignite mined out is used as fuel to the linked pithead power stations. Also, raw lignite is being sold to small scale industries to use it as fuel in their production activities. Gallery Joint venture projects NLC Tamil Nadu Power Ltd. (NTPL) (2 x 500 MW) NLC Tamil Nadu Power Limited (NTPL), is a joint venture company of