Planning Commission Deputy Chairman Montek Singh Ahluwalia today said the price-pooling mechanism should be adopted for fuel supply to power firms but solution to some of the issues involved could take some time. Addressing India Energy Forum he said to offset the impact of high import costs, Coal India should adopt a pooling formula on prices by combining rates of imported and domestic Coal.In September, CIL had asked the state governments to convey their views on price pooling of Coal. West Bengal government responded to the Coal PSU and raised objections to price-pooling of Coal. Last month, the Prime Minister's Office (PMO) had asked power companies to sign the FSAs with CIL by November-end even if they don't have binding pacts for sale of electricity.