The correct answer is Birbhum. Calcutta High Court asked both the state government and the West Bengal Power Development Corporation Limited (WBPDCL) to file separate affidavits in two weeks stating details of the proposed Deocha-Pachami-Dewanganj-Harinsingha (DPDH) coal mine project in Birbhum district. A Public Interest Litigation (PIL) petition challenges the ongoing land acquisition for the Deocha-Pachami-Dewanganj-Harinsingha (DPDH) coal mine project on the ground that it violates the Right to Fair Compensation and Transparency as prescribed under the Land Acquisition, Rehabilitation and Resettlement Act, 2013 (Land Acquisition Act, 2013) and the Rules made thereunder. A division bench of Chief Justice Prakash Srivastava and Justice Rajarshi Bharadwaj issued the order while accepting public interest litigation (PIL) filed by activist and economist Prasenjit Bose. Additional InformationDeucha-Pachami-Dewanganj-Harinsinga (DPDH) coal projectDeucha-Pachami-Dewanganj-Harinsinga coal block is the second-largest coal block in the world; it is the largest in India. The block has a thick coal seam trapped between equally thick layers of rocks, mostly basalt. It has a great economic value. The existence of these thick basalt layers, however, makes mining of coal difficult; foreign investment and technology will be hence needed for mining. An estimated 1,198 million tonnes of coal and 1,400 million tonnes of basalt are in the block.