Approval of Cabinet Committee on Investment (CCI)is being sought by the Ministry of Coal to expedite development of allocated mining blocks where no cases or FIRs have been filed by the CBI. Since May 2012, the CBI has registered three preliminary enquiries regarding alleged irregularities in coal block allocation and has filed 14 FIRs. 47 coal blocks have been deallocated out of 218 coal blocks allocated to public and private firms, holding estimated geological reserves of about 50 billion tonne.