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Electoral Analytics & 50-Year Historical Intelligence Archive Historical Data Verified from ECI Form 20 Declarations (1977–2021)

Tamil Nadu Election Results: Assembly Elections & Historical Observatory

Explore comprehensive electoral intelligence for all 234 Assembly Constituencies across 38 Revenue Districts, candidate sworn Form 26 affidavits, 2026 pre-poll analytical modeling, and granular 50-year booth-level victory margins in Tamil Nadu.

Pre-Poll Analytical Observatory β€’ October 2026 Tamil Nadu Legislative Assembly By-Elections β€’ Field Dispatches & Demographics
Focus Segments: Maduranthakam (AC #35) & Dharapuram (AC #101)

Tamil Nadu By-Election Returns: TVK Sweeps Maduranthakam & Dharapuram

Decisive public mandate in both Chengalpattu and Tiruppur districts. Tamilaga Vettri Kazhagam (TVK) captures both contested seats, expanding its assembly strength to 110 MLAs and taking the governing alliance to 123 seats (+5 beyond majority). Full 27-round and 23-round counting progression and Form 20 returns available.

View Round-Wise Counting Tables →
Chengalpattu β€’ AC #35 (SC) βœ“ TVK WON (+20,040)

Maduranthakam By-Election

Turnout: 86.26% (1,82,900 votes). Winner: K. Maragatham Kumaravel (TVK) polled 74,048 votes (40.48%) across 27 counting rounds.

πŸ† 1. K. Maragatham Kumaravel 74,048 (40.48%) β€” TVK
2. I. Paranthamen 54,008 (29.53%) β€” DMK
3. S. Kanitha Sampath 47,450 (25.94%) β€” AIADMK
4. G. Janakiraman 2,709 (1.48%) β€” NTK
Tiruppur β€’ AC #101 (SC) βœ“ TVK WON (+9,471)

Dharapuram By-Election

Turnout: 79.84% (1,77,294 votes). Winner: P. Sathyabama (TVK) polled 66,841 votes (37.70%) across 23 counting rounds.

πŸ† 1. P. Sathyabama 66,841 (37.70%) β€” TVK
2. S. Suganya 57,370 (32.36%) β€” DMK
3. K. Banumathi 45,280 (25.54%) β€” AIADMK
4. M. Karthika 5,268 (2.97%) β€” NTK
17th Tamil Nadu Legislative Assembly Current Strength (234 Total Seats)
Majority Mark: 118 Seats (SSJVA: 123 Seats β€’ TVK: 110 Seats)
SSJVA (TVK+) Governing Majority (+5)
123
Popular Vote: 38.4% Chief Minister: C. Joseph Vijay
Leading Party: TVK (110 seats) β€’ Swept Oct 2026 by-polls (+2 seats)
DMK-led SPA Official Opposition
72
Popular Vote: 36.2% Opposition Leader: Udhayanidhi Stalin
Allied Parties: DMK (59), INC (5), CPM (2), CPI (2), IUML (2), VCK (2)
AIADMK-led NDA Opposition Front
51
Popular Vote: 21.8% Opposition Leader: Edappadi K. Palaniswami
Allied Parties: AIADMK (45), PMK (4), AMMK (1), DMDK (1), BJP (0)
Certified by Election Commission of India (ECI) β€’ Form 20 Statutory Updates (Includes Oct 2026 By-Elections)
View All 234 Seats Matrix → View All 234 Seats Matrix → Council of Ministers (Cabinet) πŸ“Š Election-wise Stats (1977–2026) 85.10% Vote Share Analytics
234
Assembly Constituencies
100% Certified ECI Returns
118
Majority Mark Threshold
Halfway Cutoff to Govern TN
38
Revenue Districts
Chennai to Kanniyakumari
85.10%
Record Voter Turnout
Historic Democratic Mandate
1,200+
Candidate Sworn Affidavits
Audited for Assets & Crime Cases
New Feature 1977 – 2026 Historical Intelligence

Tamil Nadu Election-wise Statistics & Demographics Observatory

Explore in-depth candidate diversity (gender, age brackets, education qualifications), security deposit losses (by alliance and party), and 234 elected MLA profiles across all 12 Tamil Nadu general elections.

2026 Detailed Stats βž” 50-Year Observatory (1977–2026)
Key Contests & Head-to-Head Duels

Spotlight High-Profile Battles & Candidate Duels

Granular vote distributions, margin swings, and EVM vs Postal ballot counts from key constituencies

All 234 Assembly Seats →
District Electoral Command

Explore Tamil Nadu’s 38 Revenue Districts (234 Seats)

Granular district-level seat distributions, TVK vs SPA vs NDA tallies, and constituency profiles

Showing 38 Revenue Districts (234 Seats) All Districts Table →
District β€’ Tamil Nadu 2 Seats

Ariyalur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
0
NDA
2
View Ariyalur Seats (2) →
District β€’ Tamil Nadu 8 Seats

Chengalpattu

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
6
SPA
0
NDA
2
View Chengalpattu Seats (8) →
District β€’ Tamil Nadu 16 Seats

Chennai

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
14
SPA
2
NDA
0
View Chennai Seats (16) →
District β€’ Tamil Nadu 10 Seats

Coimbatore

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
6
SPA
3
NDA
1
View Coimbatore Seats (10) →
District β€’ Tamil Nadu 9 Seats

Cuddalore

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
4
NDA
4
View Cuddalore Seats (9) →
District β€’ Tamil Nadu 5 Seats

Dharmapuri

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
0
NDA
4
View Dharmapuri Seats (5) →
District β€’ Tamil Nadu 7 Seats

Dindigul

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
4
NDA
2
View Dindigul Seats (7) →
District β€’ Tamil Nadu 8 Seats

Erode

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
5
SPA
0
NDA
3
View Erode Seats (8) →
District β€’ Tamil Nadu 5 Seats

Kallakkurichi

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
2
NDA
2
View Kallakkurichi Seats (5) →
District β€’ Tamil Nadu 3 Seats

Kancheepuram

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
3
SPA
0
NDA
0
View Kancheepuram Seats (3) →
District β€’ Tamil Nadu 6 Seats

Kanniyakumari

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
5
NDA
1
View Kanniyakumari Seats (6) →
District β€’ Tamil Nadu 4 Seats

Karur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
2
NDA
1
View Karur Seats (4) →
District β€’ Tamil Nadu 6 Seats

Krishnagiri

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
2
SPA
2
NDA
2
View Krishnagiri Seats (6) →
District β€’ Tamil Nadu 10 Seats

Madurai

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
8
SPA
2
NDA
0
View Madurai Seats (10) →
District β€’ Tamil Nadu 3 Seats

Mayiladuthurai

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
3
NDA
0
View Mayiladuthurai Seats (3) →
District β€’ Tamil Nadu 3 Seats

Nagapattinam

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
2
NDA
1
View Nagapattinam Seats (3) →
District β€’ Tamil Nadu 6 Seats

Namakkal

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
5
SPA
0
NDA
1
View Namakkal Seats (6) →
District β€’ Tamil Nadu 3 Seats

Nilgiris

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
2
NDA
1
View Nilgiris Seats (3) →
District β€’ Tamil Nadu 2 Seats

Perambalur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
1
NDA
0
View Perambalur Seats (2) →
District β€’ Tamil Nadu 6 Seats

Pudukkottai

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
2
SPA
3
NDA
1
View Pudukkottai Seats (6) →
District β€’ Tamil Nadu 4 Seats

Ramanathapuram

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
3
NDA
0
View Ramanathapuram Seats (4) →
District β€’ Tamil Nadu 4 Seats

Ranipet

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
3
SPA
0
NDA
1
View Ranipet Seats (4) →
District β€’ Tamil Nadu 11 Seats

Salem

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
4
SPA
0
NDA
7
View Salem Seats (11) →
District β€’ Tamil Nadu 4 Seats

Sivaganga

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
4
SPA
0
NDA
0
View Sivaganga Seats (4) →
District β€’ Tamil Nadu 5 Seats

Tenkasi

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
4
NDA
1
View Tenkasi Seats (5) →
District β€’ Tamil Nadu 8 Seats

Thanjavur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
2
SPA
6
NDA
0
View Thanjavur Seats (8) →
District β€’ Tamil Nadu 4 Seats

Theni

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
2
SPA
2
NDA
0
View Theni Seats (4) →
District β€’ Tamil Nadu 10 Seats

Thiruvallur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
9
SPA
0
NDA
1
View Thiruvallur Seats (10) →
District β€’ Tamil Nadu 6 Seats

Thoothukkudi

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
3
SPA
3
NDA
0
View Thoothukkudi Seats (6) →
District β€’ Tamil Nadu 9 Seats

Tiruchirappalli

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
6
SPA
2
NDA
1
View Tiruchirappalli Seats (9) →
District β€’ Tamil Nadu 5 Seats

Tirunelveli

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
3
SPA
1
NDA
1
View Tirunelveli Seats (5) →
District β€’ Tamil Nadu 4 Seats

Tirupathur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
2
NDA
1
View Tirupathur Seats (4) →
District β€’ Tamil Nadu 8 Seats

Tiruppur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
4
SPA
2
NDA
2
View Tiruppur Seats (8) →
District β€’ Tamil Nadu 8 Seats

Tiruvannamalai

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
1
SPA
2
NDA
5
View Tiruvannamalai Seats (8) →
District β€’ Tamil Nadu 4 Seats

Tiruvarur

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
2
NDA
2
View Tiruvarur Seats (4) →
District β€’ Tamil Nadu 5 Seats

Vellore

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
4
SPA
0
NDA
1
View Vellore Seats (5) →
District β€’ Tamil Nadu 6 Seats

Viluppuram

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
0
SPA
3
NDA
3
View Viluppuram Seats (6) →
District β€’ Tamil Nadu 7 Seats

Virudhunagar

Comprehensive voting patterns, winning MLAs, margins, and booth-level Form 20 disclosures.

TVK
4
SPA
3
NDA
0
View Virudhunagar Seats (7) →
Supreme Court Mandate (Form 26 Audits)

Tamil Nadu MLA Financial & Legal Affidavit Transparency

Every candidate contesting Tamil Nadu Assembly and By-Elections is legally required to file Form 26 sworn affidavits detailing declared movable/immovable assets, liabilities, educational background, and pending criminal cases with the Returning Officer.

Audit CM Vijay & MLA Affidavits →
38%
17th TN Assembly MLAs with Declared Criminal Cases (89 / 234)
84%
Crorepati MLAs Elected with Assets > β‚Ή1 Crore (196 / 234)
β‚Ή18.4 Cr
Average Declared Asset Value of Elected Tamil Nadu MLAs
Verified Ground Intelligence & Video Exclusives

Direct field campaign reports, party leaders' roadshows, candidate rallies, policy launches, and key election news

All Articles & Videos →
Trending Ground Rallies & Field Campaigns

Tamil Nadu By-Election Campaign Videos & Speeches

High-definition speeches, press conferences, public vox-pops, and alliance rallies in Maduranthakam (AC #35) & Dharapuram (AC #101)

View All 100+ By-Election Videos →
Data Journalism & Video Reports

Election News & Video Dissections

In-depth statistical reporting powered by Core Web Vitals optimized, zero-layout-shift video facades

All Editorial Dissections →
Political Formations Archive

Recognized Political Parties

Historical electoral track records, seat shares, and candidate rolls across recognized national and state parties

Tamilaga Vettri Kazhagam (TVK) State Dravida Munnetra Kazhagam (DMK) State All India Anna Dravida Munnetra Kazhagam (AIADMK) State Naam Tamilar Katchi (NTK) State Indian National Congress (INC) National Pattali Makkal Katchi (PMK) State Bharatiya Janata Party (BJP) National Viduthalai Chiruthaigal Katchi (VCK) State Communist Party of India (Marxist) (CPM) National Communist Party of India (CPI) National Desiya Murpokku Dravida Kazhagam (DMDK) State Amma Makkal Munnettra Kazagam (AMMK) State
Electoral Knowledge Base

Understanding Tamil Nadu Elections & Electoral Systems

Comprehensive reference guides addressing the mechanics of Tamil Nadu democracy, voting technologies, and statutory counting rules

Electoral Systems

The First-Past-The-Post (FPTP) System in Tamil Nadu

Across all 234 Tamil Nadu Legislative Assembly constituencies, the First-Past-The-Post (FPTP) system governs election outcomes. A candidate who secures the plurality of valid votes in a constituency is declared elected, irrespective of securing an absolute majority (>50%). This dynamics often produces decisive legislative majorities even when popular vote margins between fronts are tight.

Applicable to: 234 Tamil Nadu Legislative Assembly Seats
Counting Procedures

The Significance of Form 20 (Final Result Sheets)

Under Rule 56C(2)(c) of the Conduct of Elections Rules 1961, Returning Officers prepare Form 20. Form 20 records the exact votes secured by each candidate at every designated polling station (booth). It differentiates between EVM votes and postal ballot votes, providing political scientists with unvarnished micro-data to detect neighborhood vote swings.

Audit Basis: Booth-level EVM & Postal Ballot Disclosures
Statutory Audits

Candidate Affidavits & Supreme Court Directives

Following landmark rulings by the Hon'ble Supreme Court of India in Union of India vs ADR (2002), candidates must declare their assets, liabilities, educational qualifications, and pending criminal cases under Form 26. Parties must also publish reasons in newspapers and social media why candidates with criminal backgrounds were chosen over candidates with clean records.

Regulatory Mandate: Conduct of Elections Rules, Form 26
Constitutional Law

Tamil Nadu Delimitation & 234 Assembly Seats Balance

Constituency boundaries across Tamil Nadu's 38 Revenue Districts are defined under the Delimitation Act, comprising 188 General seats, 44 Scheduled Caste (SC) reserved seats, and 2 Scheduled Tribe (ST) reserved seats. Understanding regional urban-rural distribution remains central to analyzing assembly power dynamics.

Governing Law: Delimitation Orders & Tamil Nadu Representation
Frequently Asked Questions

Election Results & Data Analytics FAQ

Authoritative answers to common questions regarding Tamil Nadu assembly tallies, voting procedures, and data verification

Who won the 2026 Tamil Nadu Legislative Assembly Election and what is the majority mark?
The Tamilaga Vettri Kazhagam (TVK), led by actor-politician C. Joseph Vijay, won the 2026 Tamil Nadu Legislative Assembly election by securing 108 seats out of 234. The majority threshold required to form the Council of Ministers in Tamil Nadu is 118 seats. C. Joseph Vijay assumed office as the Chief Minister of Tamil Nadu leading the governing formation.
How many total Legislative Assembly seats exist in Tamil Nadu and across how many districts?
Tamil Nadu has 234 elected Legislative Assembly (Vidhan Sabha) constituencies distributed across 38 Revenue Districts. The capital district of Chennai has 16 assembly seats, followed by Salem (11 seats), Coimbatore (10 seats), and Madurai (10 seats).
What are the key Tamil Nadu Assembly By-Elections scheduled for October 2026?
The Election Commission of India notified high-priority Assembly By-Elections in Maduranthakam (SC - AC #35 in Chengalpattu district) and Dharapuram (SC - AC #101 in Tiruppur district) with polling on 06 October 2026 and counting on 09 October 2026.
Where does ElectionsResults.in obtain its official voting data and candidate affidavits?
Electoral data on ElectionsResults.in is aggregated from public statutory records published by the Election Commission of India (ECI), Chief Electoral Officer Tamil Nadu (CEO TN), certified Returning Officer declarations, Form-20 booth result sheets, and Form 26 candidate sworn affidavits. Our editorial research desk compiles, verifies, and analyzes these public datasets to provide non-partisan civic intelligence and historical trend analysis.
What is Form 20 in Tamil Nadu elections and why is it important for booth-level analysis?
Form 20 is the statutory Final Result Sheet prepared by Returning Officers under Rule 56C(2)(c) of the Conduct of Elections Rules, 1961. It details the exact valid votes polled by each candidate at every individual polling station (booth), distinguishing between EVM votes and postal ballots. Analyzing Form 20 reveals localized voting trends and booth swing patterns across Tamil Nadu’s 234 constituencies.
What is the voter turnout record in the 2026 Tamil Nadu Assembly elections?
Tamil Nadu recorded a historic state-wide voter turnout of 85.10% in the 2026 Legislative Assembly election, characterized by strong female voter participation and high turnout across both rural agrarian belts and urban centers.

Stay Informed with In-Depth Electoral Analytics

Track Tamil Nadu Legislative Assembly election analytics, historical trends, and candidate affidavit profiles.