Updated: February 04, 2021 23:32 IST 500 MW capacity lignite-fired boilers of the NNTPP are the first of its kind in India Share Article AAA 500 MW capacity lignite-fired boilers of the NNTPP are the first of its kind in India NLC India Ltd. (NLCIL) on Thursday announced that it had successfully completed a 72 hour continuous trial operation of the 500 MW second unit of the 2 x 500 MW pit head lignite-fired Neyveli New Thermal Power Project (NNTPP) at its rated capacity on Wednesday. According to a NLCIL official, the 500 MW capacity lignite-fired boilers of the NNTPP are the first of its kind in India. “The first unit was already commissioned and the power plant will be fully operational,” he said.