NTPC on Tuesday asked the two BSES utilities to make their payments and said in the event of failure to do so it would be forced to regulate supplies to the state discoms.
Chairman and Managing Director of NTPC Arup Roy Choudhury said, "BSES must make good their statement, we are in a difficult situation. If we are not paid in time we will have to regulate nearly 2000 MW, we have (other) buyers for it.
NTPC last week issued notices to BSES Rajdhani and BSES Yamuna for defaulting on payment security mechanism and non-payment of outstanding dues to the state-run company.
The present allocation of power to BSES Rajdhani from NTPC stations is 1,261 MW.
BSES Rajdhani distributes power to over 18.5 lakh customers in south and west Delhi, including Alaknanda, Vasant Kunj, Saket, Nehru Place, Nizamuddin, Sarita Vihar, Hauz Khas, R K Puram, Janakpuri, Punjabi Bagh, Tagore Garden, Vikas Puri, Palam and Dwarka, according to its website.