The company had posted a net profit of Rs 1,478.58 crore in the year-ago period, REC said in a filing to BSE.
However, the total income from operations during April-June quarter increased to Rs 5,953.65 crore over Rs 5,662.89 crore in the corresponding quarter of last fiscal.
The interest income increased to Rs 5,889.52 crore, over Rs 5,640.98 crore in the year-ago period.
The company said "it has subscribed to 26,05,42,050 fully paid equity shares of NHPC under Offer for Sale at a cost of Rs 21.78 per share of Rs 10 each aggregating to Rs 567.50 crore."
REC provides financial assistance for rural electrification as well as all types of power generation, transmission and distribution projects.