The Seventh Schedule of the constitution contains three lists i.e., the Union List, the State List and the Concurrent List. Each list contains subjects over which the Central Government, The State Governments (as far as their respective states are concerned), or both the governments can take decisions and make laws respectively. In cases where both the Central and State governments have made laws about subjects falling in the Concurrent List, then the decision of the former prevails. Furthermore, the State Governments can also ask the Central Government to make laws on subjects included in the State List, if such a need arises.