Section Text
a) "atomic energy" means the energy released from atomic nuclei as a resalt of any process, including the fission process, but does not include energy released in any process of natural transmutation or radio-active decay which is not accelerated or influenced by external means;
(b) "minerals" includes all substances obtained or obtainable from the soil by underground or surface working, (c) "plant" includes any machinery, equipment or appliance, whether affixed to land or not :
(d) 'prescribed substance" means uranium, thorium, plutonium, nep- tunium or berylium or any of their respective compounds or any other substance which the Central Government may, by notification in the offcial Gazette, prescribe, being a substance which in its opinion is or may be used for the production or use of atomic energy or research into matters connec- ted therewith.