New Delhi With impasse over the price pooling mechanism of imported coal remaining unresolved, the Prime Minister's Office (PMO) has asked both Coal India and Central Electricity Authority to work on the issue.

"The PMO has recently asked both CIL and CEA to sit and work on Price Pooling," a top official in the Coal Ministry said. To offset the impact of high import costs, the Planning Commission has said that CIL should adopt a pooling formula on prices by combining rates of imported and domestic coal.