The wage revision talks between Coal India Ltd. (CIL) and its worker failed abruptly on Jan 27, 2012, after two weeks when the management of the CIL agreed in principle to increase wages by 25%. The wage revision talks with the workers could not be concluded satisfactorily as their demands were ambiguous and beyond the standard benchmark. CIL management did not accept the demand of workers for hike in the underground allowance from 12.5% to 15%.