NTPC has asked Anil Ambani Group's electricity distribution utilities in Delhi - BSES Rajdhani and BSES Yamuna - to clear Rs 1,300 crore of dues by midnight May 9 or face a cut in power supply. BSES Rajdhani has dues of Rs 892.30 crore for the electricity supplied from December 2015 till March 2016. The dues of BSES Yamuna total Rs 402.93 crore for the same months. "A notice for regulation has been served on the BRPL & BYPL for regulation of power supply with effect from 00:00 hours of May 10, 2016 for a total quantum of 2,027 MW," NTPC said in a statement. The public sector power generator said it has to pay in advance to its fuel suppliers which constitute about 75-80 per cent of its monthly energy bills and if the situation continues, its stations may be facing outages on account of shortage of fuel. The company supplies 1,349 MW from 16 of its stations to BSES Rajdhani while 678 MW is supplied to BSES Yamuna. Its monthly average energy bill to the two electricity distribution utilities is around Rs 390 crore. Delhi's peak power requirement stands at anywhere between 5,500 MW and 6,000 MW.