Section 45(1)(a) in Bihar Minor Mineral Concession Rules, 1972
(a)The Commissioner, at any time for reasons to be recorded in writing, may on his own motion, and where any person aggrieved by any order passed by the Collector under these rules files an application within 60 days from the date of communication of the order, and within 75 days from the date on which an application is deemed to have been refused by the Collector, if no communication is made of such refusal, shall start a proceeding for revision of the order: