Union List includes subjects of national importance such as defence of the country, foreign affairs, banking, communications and currency. They are included in this list because we need a uniform policy on these matters throughout the country. The Union Government alone can make laws relating to the subjects mentioned in the Union List. State List contains subjects of State and local importance such as police, trade, commerce, agriculture and irrigation. The State Governments alone can make laws relating to the subjects mentioned in the State List. Concurrent List includes subjects of common interest to both the Union Government as well as the State Governments, such as education, forest, trade unions, marriage, adoption and succession. Both the Union as well as the State Governments can make laws on the subjects mentioned in this list. If their laws conflict with each other, the law made by the Union Government will prevail. (i) Under a federal government, the fundamental provisions cannot be unilaterally changed by one level of the government and the same is true for India, (ii) The Parliament cannot on its own change the fundamental structure of the Constitution. Any change in it has to be first passed by both Houses of the Parliament with at least two-third majority. Then it has to be ratified by the legislatures of at least half of the total states.