TNPSC Group II · General Studies · Indian Polity

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Elections

ECI, electoral system, anti-defection law, electoral reforms.

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Elections

ECI, Electoral System, Anti-Defection Law, Electoral Reforms


Overview

Elections form the bedrock of Indian democracy. Questions typically test your knowledge of the Election Commission's composition and powers, the mechanics of how representatives are elected, the anti-defection provisions under the Tenth Schedule, and recent electoral reforms.

Understanding this topic requires clarity on constitutional articles (especially Articles 324-329), the distinction between different electoral systems, and landmark judgments that have shaped election law. For TNPSC, expect direct factual questions on ECI appointments, tenure, removal procedures, and specific provisions of the anti-defection law—particularly who decides disqualification cases and the exceptions allowed.

Master the constitutional framework first, then focus on reforms introduced in the last two decades. This topic also connects with Current Affairs when new reforms are announced or election-related Supreme Court judgments are delivered.


Key Concepts

  • Election Commission of India (ECI) is an independent constitutional body under Article 324, responsible for superintendence, direction, and control of all elections to Parliament, State Legislatures, and offices of President and Vice-President.
  • Composition of ECI: Originally single-member; since 1993, it has been multi-member with one Chief Election Commissioner (CEC) and two Election Commissioners (ECs). All three have equal voting power; decisions are taken by majority.
  • First-Past-The-Post (FPTP) System: India uses territorial representation where the candidate with the highest votes wins, regardless of whether they secure a majority. Simple, but can result in governments formed without majority popular vote.
  • Proportional Representation (PR): Used only for President, Vice-President, and Rajya Sabha/State Legislative Council elections. Ensures representation proportional to votes received.
  • Anti-Defection Law (Tenth Schedule): Added by 52nd Amendment, 1985, to curb political defections. Disqualifies members who voluntarily give up party membership or vote against party whip.
  • Merger Exception: Defection is permitted if at least two-thirds of a legislature party agrees to merge with another party—this is the only group exception left after the 91st Amendment, 2003 removed the "split" provision.
  • Model Code of Conduct (MCC): A set of guidelines issued by ECI for political parties and candidates during elections. Not statutory, but enforced through administrative actions and moral authority.
  • NOTA (None of The Above): Introduced in 2013 following the PUCL vs Union of India judgment, allowing voters to reject all candidates. However, NOTA votes do not affect election results—highest vote-getter still wins.

Formulas / Key Facts

AspectKey Fact
Article 324Vests election superintendence in ECI
Article 325One general electoral roll; no special rolls based on religion/race/caste
Article 326Adult suffrage—every citizen 18+ years can vote (reduced from 21 by 61st Amendment, 1988)
CEC/EC AppointmentBy President (earlier—on PM's advice; from 2023—selection committee of PM, LoP and a Union Cabinet Minister nominated by PM)
CEC RemovalSame as Supreme Court Judge (impeachment by Parliament)
EC RemovalOn CEC's recommendation only
CEC/EC Tenure6 years OR until age 65, whichever is earlier
Tenth Schedule Added52nd Amendment, 1985
Split Provision Removed91st Amendment, 2003
Merger ThresholdTwo-thirds of legislature party members
Defection DecisionMade by Speaker/Chairman; subject to judicial review (Kihoto Hollohan case, 1992)
EVM IntroductionFirst used in 1982 (Kerala); nationwide from 2004
VVPAT Introduced2013; mandatory nationwide from 2019

Worked Examples

Example 1: Anti-Defection Scenario

A political party has 30 MLAs. 12 MLAs decide to join another party. Will they be disqualified?

Solution:

  • Total MLAs = 30
  • Two-thirds of 30 = 20
  • MLAs attempting to merge = 12 (less than 20)
  • Since 12 < 20, merger exception does not apply
  • All 12 MLAs will be disqualified under the Tenth Schedule

Example 2: ECI Decision-Making

The CEC and one EC support a decision, but the second EC opposes it. What happens?

Solution:

  • ECI decisions are taken by majority vote
  • CEC + one EC = 2 votes in favour
  • One EC = 1 vote against
  • Decision passes (2 vs 1 majority)
  • Note: CEC does not have a casting vote or veto power

Example 3: FPTP vs PR

In a constituency, Candidate A gets 35,000 votes, B gets 34,000, C gets 31,000. Who wins?

Solution:

  • Under FPTP system, the candidate with the highest votes wins
  • Candidate A wins with 35,000 votes
  • Note: A wins despite getting only 35% of total votes (no majority required)

Common Mistakes

  • Thinking CEC has more power than ECs → Wrong. All three have equal voting rights; CEC's special status is only regarding removal (needs impeachment).
  • Believing Speaker's decision on defection is final → Wrong. After Kihoto Hollohan judgment (1992), Speaker's decision is subject to judicial review, though courts cannot intervene while proceedings are pending.
  • Confusing "split" with "merger" → The 91st Amendment (2003) removed the split provision (one-third). Now only merger (two-thirds) is a valid group exception.
  • Assuming NOTA can invalidate an election → Wrong. Even if NOTA gets the highest votes, the candidate with most votes among contestants wins. NOTA is merely a protest option.
  • Mixing up appointment procedures → After the 2023 Act, CEC/EC selection is by a committee (PM + LoP + a Union Cabinet Minister nominated by PM), not solely on PM's advice. This is a frequently updated fact.
  • Confusing Article 324 with 326 → 324 deals with ECI's powers; 326 deals with adult suffrage. Both are important but distinct.

Quick Reference

  • ECI = Article 324; Adult Suffrage = Article 326; One Electoral Roll = Article 325
  • CEC removal = Impeachment; EC removal = On CEC's recommendation
  • Anti-Defection = Tenth Schedule = 52nd Amendment (1985); Split removed by 91st Amendment (2003)
  • Merger requires 2/3 of legislature party, not original party
  • Speaker decides defection cases; Judicial review allowed post-decision (Kihoto Hollohan)
  • MCC is not a law—it is a moral/administrative code enforced by ECI

Fact-checked on 17 Oct 2026: an AI-assisted check of this note against cited sources; the errors it found were corrected that day. Some errors may remain. Download the TNPSC Group II checked notes as a PDF

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About this topic in TNPSC Group II

  • Previous papers: 5 official question papers from Tamil Nadu Public Service Commission — 2025, 2024, 2022.
  • Next exam day: Main exam (expected; date to be announced with prelims result): 14 Mar 2027 (Expected — an estimate, not announced).

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Notes generated on 13 Sept 2026