Intensifying its drive against firms sitting idle on mines, the Inter-Ministerial Group (IMG) on coal blocks has recommended deallocation of 11 blocks given to companies like JSPL and Monnet Ispat & Energy. "The IMG has recently recommended deallocation of 11 coal blocks of companies like JSPL and Monnet Ispat & Energy Ltd," a source said. "In the case of another 19 mines, the IMG has recommended either imposition or deduction of bank guarantee," the source added. Coal blocks which were recommended for deallocation include Ramchandi Promotional block allotted to JSPL, the source said. These coal blocks were earlier issued show-cause notices for delaying production. Last month, the Coal Ministry asked the coal block allottees to make presentation before the IMG on achievement of milestones and reasons for delays. The firms which were asked to make presentation include, SAIL, NTPC, JSPL, Tata Power and Monnet Ispat and Energy Ltd. JSPL was asked to make presentation with regard to delaying production from its four coal blocks in Jharkhand, Odisha and Madhya Pradesh.