The Rajya Sabha or Council of States is the upper house of the Parliament of India. Membership of Rajya Sabha is limited by the Constitution to a maximum of 250 members, and current laws have provision for 245 members. Most of the members of the House are indirectly elected by state and territorial legislatures using single transferable votes, while the President of India can appoint 12 members for their contributions to art, literature, science, and social services. Members sit for staggered six-year terms, with one third of the members retiring every two years.