The election of Rajya Sabha, the Upper House of the Indian Parliament, is conducted by an electoral college consisting of elected members of the State Legislative Assemblies. This process is governed by the provisions of Article 80 of the Indian Constitution, which outlines the composition and method of election for the Rajya Sabha.

**Composition of Rajya Sabha:**
The Rajya Sabha consists of a maximum of 250 members. Out of these, 238 members are elected by the State Legislative Assemblies and Union territories while 12 members are nominated by the President of India. Each state and union territory is allocated a certain number of seats based on its population and representation in the Parliament.

**Electoral College:**
The elected members of the State Legislative Assemblies form the electoral college for the Rajya Sabha elections. The members of the Legislative Councils, where they exist, do not participate in the election of Rajya Sabha members. The electoral college reflects the federal character of the Indian political system as the Rajya Sabha represents the interests of states and union territories.

**Election Process:**
The election of Rajya Sabha members is conducted by a system of proportional representation by means of a single transferable vote. In this system, the members cast their votes in order of preference, indicating their first, second, third, and subsequent choices.

**Voting and Quota:**
To be elected, a candidate must secure a certain minimum number of votes known as the quota. The quota is determined by dividing the total number of valid votes by the number of seats to be filled, plus one, and adding one to the quotient. If a candidate receives more votes than the quota, they are declared elected.

**Surplus Votes and Transfers:**
If a candidate receives surplus votes (votes beyond the quota), the surplus is transferred to the next preference mentioned by the voters. This transfer of surplus votes continues until all the seats are filled. If no candidate secures the quota, the candidate with the least number of votes is eliminated, and their votes are transferred to the next preference. This process continues until all the seats are filled.

**Conclusion:**
The election of Rajya Sabha members is a complex process that ensures proportional representation and reflects the federal nature of the Indian political system. The involvement of the elected members of the State Legislative Assemblies in the electoral college allows for the representation of regional interests at the national level.