Single Transferable Vote is the basic concept of Proportional Representation. We follow this system in the Rajya Sabha elections. Accordingly, each State is given a quota to the Rajya Sabha. For a candidate to win, he should get the proportional share of the votes. The equation tp decide the quota is as follows:
\((\frac{The\, number, of\, total\, vovtes\, Polled}{The\, number\, of\,total\, candidates\, to\, be\, elected\,+1}+1)\)
The number of total candidates to be elected +1 ) For example, for the election to the Rajya Sabha, the voters from Kerala are the 140 members of the Kerala Assembly. According to the equation for deciding the quota:
\(\frac{140}{3+1} + 1 = 36\)
The number of total members from Kerala to the Rajya Sabha is 9. One-third of them (that is 3) complete their term every two years. So each time 3 members are elected.