Solution:

The Rajya Sabha or Council of States is the upper house of the bicameral Parliament of India. It currently has a maximum membership of 245, of which 233 are elected by the legislatures of the states and union territories using single transferable votes through Open Ballot while the President can appoint 12 members. Members sit for staggered terms lasting six years, with elections every year but almost a third of the 233 designates up for election every two years, specifically in even-numbered years.