Exemption of intra-state heavy water and nuclear fuels removes state tax on supplies from Department of Atomic Energy. Exempts intra state supply of heavy water and nuclear fuels from state GST where supplied by the Department of Atomic Energy to the Nuclear Power Corporation of India Ltd, removes the state tax otherwise leviable on those goods under the State GST statute, identifies the goods by tariff chapter, and declares the exemption effective from the stated operative date.