Outstanding dues payable by power producers to Coal India for fuel supplies have increased by Rs 3,293.50 crore to Rs 16,629.41 crore since March 31, 2022, Parliament was informed on Monday. “The outstanding dues payable by power sector for the coal sales by Coal India Ltd (CIL)” were Rs 13,335.91 crore as of March 31 last year, Coal Minister Pralhad Joshi said in a written reply to the Rajya Sabha.