Section 21(1)(xiv) in The Punjab Minor Mineral Concession Rules, 1964
(xiv)The Government shall from time to time and at all times during the term of the lease have the right (to be exercised by notice in writing to the lessee) of pre-emption of the said minor minerals and all products thereof lying in or upon the said lands hereby demised or elsewhere under the control of the lessee and the lessee shall deliver all minor minerals or products thereof to the Government at current market rates in such quantities and in the manner at the places, specified in the notice exercising the said right.