Section 3(a) of this Act says: " 'minerals ' includes all minerals except mineral oils;" Section 3(c) reads: " 'mining lease ' means a lease granted for the purpose of undertaking mining operations, and includes a sub lease granted for such purpose"; Section 3(d) enacts: " 'mining operations ' means any operations undertaken for the purpose of mining any mineral;" Section 3(e) elucidates: " 'Minor minerals ' means building stones, gravel ordinary clay, ordinary sand other than sand used for prescribed purposes, and any other mineral which the Central Government may, by notification in the official Gazette, declare to be a minor mineral"; Section 3 (g) indicates: " 'prospecting licence ' means a licence granted for the purpose of undertaking prospecting operations;" Section 3(h) enacts: " 'prospecting operations ' means any operations under taken for the purpose of exploring locating or proving mineral deposits;" Section 3(i) lays down: "the expressions, 'mine ' and 'owner ', have the meanings assigned to them in the ".