Section 8(2)(ii) in Coal Blocks Allocation Rules, 2017
(ii)In case the coal block is allotted for the purpose of own consumption, if the allottee washes coal obtained from the coal block, then the middlings, rejects, tailings, jhama or any other type of coal obtained on washing, which cannot be utilised for the purpose for which the coal block has been allocated, shall be sold or disposed of by the successful allottee only with the prior approval of the Coal Controller's Organisation.