Single transferable vote

1. Meaning and electoral logic

Under the single transferable vote, the elector indicates an order of preference among candidates: 1 for the first choice, 2 for the second, and so on. The vote initially supports the first-preference candidate. It may subsequently transfer to another continuing candidate according to the next available preference. The word single refers to the elector’s transferable vote, not to a restriction to marking only one preference.

In a multi-member constituency, several candidates are elected from the same electorate. A quota determines the vote value sufficient for election. Transfers of surplus votes and votes of excluded candidates reduce wastage and can allow different political groups to secure representation broadly corresponding to their strength. Unlike a party-list system, STV lets electors express preferences for individual candidates, including candidates belonging to different parties.

A crucial qualification concerns single-office elections. Although the Constitution describes the presidential and vice-presidential methods as proportional representation by STV, only one person can win each office. Operationally, these are single-winner preferential elections, closely resembling the alternative-vote method. They cannot distribute seats proportionately among several groups. This distinction reconciles the constitutional terminology with the analytical meaning of proportional representation.

• Preference voting is the ballot structure; proportionality is an outcome associated principally with multi-member STV.
• A later preference does not count simultaneously with an effective earlier preference.

2. Constitutional applications in India

Under Articles 54 and 55, the President is elected by elected members of both Houses of Parliament and elected members of the Legislative Assemblies of states, including the National Capital Territory of Delhi and Puducherry. Nominated MPs, nominated MLAs and all Legislative Council members are excluded. The Seventieth Constitutional Amendment, 1992, extended the relevant references to states to include Delhi and Puducherry.

Presidential voting is weighted. An MLA’s vote value is calculated using the state’s population and number of elected Assembly members under Article 55. Each elected MP receives a uniform vote value derived from the aggregate value of MLA votes. The Eighty-fourth Amendment, 2001, continued the use of the 1971 Census population until the relevant figures of the first census taken after 2026 are published. Thus, the electoral college’s headcount and its aggregate vote value are different quantities.

Under Article 66, the Vice-President is elected by members of both Houses of Parliament. Both elected and nominated MPs participate, but state legislators do not. Each elector has equal voting weight. For the Rajya Sabha, Article 80(4) provides that representatives of a state are elected by its elected MLAs through proportional representation by STV. Union territory representation is governed by parliamentary law under Article 80(5). Article 171(4) similarly applies STV to the elected categories of Legislative Councils: local authorities, graduates, teachers and MLAs.

• The President and Vice-President are elected by secret ballot.
• Election Commission supervision follows Article 324; presidential and vice-presidential election disputes are decided by the Supreme Court under Article 71.

3. Quota, transfers and counting

Counting begins with scrutiny of ballots and allocation of valid first preferences. In a simplified equal-value STV example, the Droop quota is the integer part of V divided by S plus 1, followed by adding 1, where V is the number of valid votes and S is the number of seats. Written unambiguously: quota = floor[V/(S+1)] + 1. With 100 valid votes and three seats, the illustrative quota is 26.

Candidates attaining the prescribed quota are declared elected. In multi-seat counting, a candidate’s surplus above the quota may be transferred to continuing candidates according to later preferences. Transfers occur at the value determined by the applicable rules, rather than treating every transferred ballot as a fresh full-value vote. If no transferable surplus remains and seats are still unfilled, the lowest-polling continuing candidate is ordinarily excluded and transferable votes move onward.

A ballot becomes exhausted when it contains no usable preference for a continuing candidate. The elector is not compelled to rank every candidate: a valid first preference is essential, while later preferences extend the ballot’s possible influence. Errors in marking preferences can invalidate a ballot or prevent a later transfer, depending on the prescribed rules.

For presidential elections, the quota is calculated from total valid vote value, not simply the number of ballots. If nobody obtains the required majority on first preferences, successive exclusions and transfers follow. Detailed Indian counting procedures use statutory valuation and rounding rules, so a classroom quota formula should not replace the applicable election rules.

• Do not use total Assembly membership automatically as the quota denominator: valid votes actually cast matter.
• For Rajya Sabha elections, count the seats being filled together in that election, not the state’s entire Rajya Sabha allocation.

4. Ballot secrecy, party discipline and judicial interpretation

The Representation of the People (Amendment) Act, 2003 introduced an open-ballot procedure for Rajya Sabha elections. A party-affiliated MLA must show the marked ballot to the party’s authorised agent as prescribed. An independent MLA must not show the ballot to a party agent. Open ballot therefore means regulated disclosure, not publication of each vote for the general public.

In Kuldip Nayar v. Union of India, 2006, the Supreme Court upheld the open-ballot system and the removal of the state-domicile requirement for Rajya Sabha candidates. The Court accepted that ballot secrecy is not an absolute requirement in every electoral context and that Parliament could adopt safeguards against corruption in indirect elections.

Rajya Sabha voting should not be confused with a legislative division attracting the Tenth Schedule. Voting contrary to party preference in this election does not, by itself, attract anti-defection disqualification. Parties may nevertheless impose internal disciplinary consequences. Presidential and vice-presidential elections remain secret-ballot contests, and a party whip cannot bind electors in the manner applicable to voting inside a legislature.

5. Democratic value and limitations

Multi-member STV gives cohesive minorities a realistic opportunity to win seats while preventing a bare legislative majority from necessarily capturing every seat. Candidate ranking also permits greater choice than a closed party list. In Rajya Sabha elections, however, the proportionality primarily reflects party strength within the state Assembly rather than citizens’ statewide vote shares.

Its limitations include complicated counting, dependence on carefully managed preferences and possible exhaustion of ballots. Proportionality is also constrained by the number of seats filled together: fewer seats generally mean a higher effective threshold. Moreover, STV cannot guarantee minority representation, eliminate strategic voting or automatically prevent inducements and cross-voting.

For examination purposes, distinguish electoral formula, electorate and ballot procedure. STV answers how preferences are translated into outcomes; the electoral college identifies who votes; secret or open ballot describes how the vote is protected or disclosed. None of these features should be inferred automatically from another.

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