In a toughening of stand on their exposure to the power sector, banks have started refusing to disburse sanctioned loans to generation companies unless these firms are able to convince them about a steady supply of coal.
Fresh loan sanctions to power companies are also shrinking due to mounting worries on the financial positions of these corporations and their ability to repay existing debt.
"None of the loans were sanctioned by banks without a tie-up for coal.
"The tie-up was a letter, which gave in-principle guarantee on the allotment of coal.
But, those were only in-principle letters and not commitments," said K R Kamath, chairman and managing director of Punjab National Bank.
"There are loans that have been sanctioned on the basis of these letters but have not been disbursed. The disbursements will not happen unless we see coal," he added.
PNB, the second largest government owned bank in the country, had lent Rs 12,283 crore (Rs 122.83 billion) to power companies as of September-end.
The lender has already restructured Rs 2,553 crore (Rs 25.53 billion) of loans given in this sector.
"It will be very difficult to disburse loans without addressing the linkage to coal," said Bhaskar Sen, chairman and managing director of United Bank of India.
"The Kolkata-based lender has given Rs 5,700 crore (Rs 57 billion) of loans to power companies.
According to the Central Electricity Authority, coal requirement was estimated around 31.5 million tonnes in September.
However, only 24.9 million tonnes was made available to thermal power stations during the month.
Thermal power stations suffered a shortfall in generation exceeding 100