Coal India has rejigged coal prices from May 28, resulting in a weighted average increase of about 5 per cent. The company has cut prices of some high-grade coals and hiked prices of lower grades, including an almost 50 per cent hike in the prices of output of a particular mine dedicated to NTPC, Coal India chairman Narsing Rao said.

The aggregate impact of a 4.77 per cent weighted average hike in prices would be Rs 2,119.36 crore this fiscal, he said. Another round of hikes may also be in the offing despite the recent easing of global commodity prices. Rao indicated that a policy of bringing in international pricing parity for the unregulated sector is now being followed.