There is a provision for a bicameral legislature consisting of an upper house, the Rajya Sabha (Council of States), which represents the states of the Indian federation, and a lower house, the Lok Sabha (House of the People), which represents the people of India as a whole. The Indian constitution provides for an independent judiciary, which is headed by the Supreme Court. The court's mandate is to protect the constitution, to settle disputes between the central government and the states, to settle inter-state disputes, to nullify any central or state laws that go against the constitution and to protect the fundamental rights of citizens, issuing writs for their enforcement in cases of violation.