Tata Power, India's largest private power company, reported a consolidated net loss of R83.80 crore. It was hit by R250-crore impairment charge for its unit, Coastal Gujarat Power (CGPL), the holding company for its 4,000 MW Mundra plant, where it is seeking to renegotiate the tariff to pass on increased costs. Meanwhile, Adani Power, in which Adani Enterprises currently holds a 68% stake, reported a consolidated net loss of R261 crore against a profit of R173 crore in the year-ago period, hit by higher fuel costs. Anil Ambani 's Reliance Power, however, bucked the trend by trumping market expectations with a 2.1% net profit at R240 crore as higher generation capacity helped it overcome a spike in fuel costs.