The company had posted a net profit of Rs 64.5 crore in the year-ago period, GPPL said in a BSE filing.
Total income during the said quarter fell to Rs 170.09 crore, from Rs 180.03 crore in the third quarter of 2016-17 fiscal.
Total expenses were at Rs 93.2 crore, as against Rs 92.4 crore in the year-ago period.
Shares of GPPL settled at Rs 147 apiece, down 2.23 per cent on BSE.
Disclaimer: No Business Standard Journalist was involved in creation of this content