Section 21(1)(iv) in The Punjab Minor Mineral Concession Rules, 1964
(iv)[if any minor mineral] [Substituted by GSR 239 dated 27.9.1965.] not specified in the lease is discovered in the leased area, the lessee shall report the discovery without delay to the Government and shall not win or dispose of such minor mineral without obtaining a lease within six months from the discovery of the minor mineral the Government may give the lease in respect of such mineral to any other person.