The closure of seven working mines in Odisha has triggered sharp price hikes by lessees as well as the country's top producer NMDC Ltd. The operational mines held by Serajuddin & Company, Mesco Steel, state-run Industrial Corporation of Odisha Ltd (Idcol) and others were closed on January 1 this year after they failed to pay out the Supreme Court-mandated compensation in a case of overproduction between 2000-01 and 2010-11. The deadline for paying penalties was December

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