It had reported net loss of Rs 329 crore in the October- December quarter of 2012-13 due to impairment charges worth Rs 600 crore, Tata Power said in a stock exchange filing.
Tata Power's total income from operations in Q3, 2013-14 was down at Rs 8,700 crore, from Rs 9,039.31 crore in the year-ago period.
Its cost of fuel during the quarter decreased to Rs 2,307 crore, from Rs 2,696 crore in the same period last year.
On standalone basis, the company posted net profit of Rs 251.13 crore for the quarter as compared to Rs 216.38 crore for the three months ended December 31, 2012.
Its total income decreased however from Rs 2,580.93 crore for the quarter to Rs 1,998.59 crore for the quarter ended December 31, 2013.
Last week, the company exited from the Indonesian coal mining firm PT Arutmin for USD 500 million (Rs 3,150 crore) to cut debts. The company's Mundra UMPP project is facing under-recovery challenges.
Tata Power had purchased 30 per cent stake each in PT Arutmin and KPC for USD 1.1 billion in 2007.
The country's leading private power generator, through its wholly-owned subsidiary, signed an agreement to sell its 30 per cent stake in Arutmin and associated companies in coal trading and infrastructure to an Indonesian firm Bakrie Group entity.
It continues to hold its equity stake in PT Kaltim Prima Coal which owns one of the largest thermal coal producing mines in the world.
Tata Power shares were trading down 0.20 per cent at Rs 75.15 on the BSE in the afternoon trade.