New Delhi After two stagnant years, April-September coal output posted a robust growth of 8.5%. Public sector Coal India (CIL) and private players with captive mines ramped up production after a worried government put them on notice.

CIL exceeded its production target in the first half. If the trend continues, the pressure on the coal import bill may ease, helping reduce the country's trade deficit. Coal shortage has put several power sector projects on hold.