The bluechip stock ended with a gain of 3.83 per cent at Rs 132.70 on BSE. During the day, it surged 7.62 per cent to Rs 137.55.
At NSE, shares of the company climbed 3.79 per cent to close at Rs 132.80.
The company's market valuation advanced by Rs 4,040.31 crore to Rs 1,09,417.31 crore.
The stock was the top gainer on Sensex and Nifty indices.
On the volume front, 8.55 lakh shares of the company changed hands at BSE and over 91 lakh shares were traded at NSE during the day.
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"The company has posted a net profit of Rs 2,898.28 crore for the quarter ended September 30, 2015 as compared to Rs 2,071.63 crore for the quarter ended September 30, 2014," NTPC Ltd had said in a BSE filing.
According to the statement, the total income increased to Rs 18,173.9 crore in the second quarter of 2015-16 fiscal from Rs 17,267.32 crore in the same period of 2014-15.
NTPC further said that the revenue from power generation increased to Rs 17,950.28 crore as compared to Rs 16,805.73 crore in the year-ago period.