🤝 Coalition & Alliance Intelligence 2026 Assembly Fronts Majority Mark: 118 / 234

Tamil Nadu Assembly Election Alliances & Seat Sharing (2026)

Complete analytical breakdown of electoral alliances, seat-sharing pacts, seats contested, won, lost, strike rates, popular vote conversions, and government coalition alignment.

Constituency Directory 234 Council of Ministers 30 Alliances & Coalitions SSJVA / SPA / NDA District Performance 38 Vote Share & Analytics 85.10% Statistics & Demographics 1977–2026 By-Elections & Vacancies 2 Active Election Schedule Timeline
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Pre-Poll vs Post-Poll Realignment

Alliance Dynamics: Pre-Election Ballot vs. Post-Election Floor Strength (2026)

In the 2026 Tamil Nadu Legislative Assembly Election, Tamilaga Vettri Kazhagam (TVK) contested solo across all 234 assembly constituencies and won 108 seats in the General election, subsequently gaining 2 seats in the October 2026 By-Elections (Madurantakam & Dharapuram) to reach 108 + 2 = 110 total MLAs. As the lead ruling party, TVK formed the Secular Social Justice Victory Alliance (SSJVA / மதச்சார்பற்ற சமூகநீதி வெற்றிக் கூட்டணி) with INC (5), IUML (2), VCK (2), CPI (2), and CPM (2) to command a 123-seat majority (comfortably above the 118 threshold) and establish the 17th Tamil Nadu Government under 22nd Chief Minister C. Joseph Vijay.

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Pre-Election Ballot Fronts

Seat-sharing agreements on the April 2026 general ballot
Tamilaga Vettri Kazhagam (TVK) Pre-Poll Solo Contest
Contested: 234 Won: 108 Lost: 126 Strike Rate: 46.15%
No Pre-Election Alliance. TVK contested all 234 assembly constituencies independently on its own election symbol, winning 108 seats in May 2026 and adding 2 seats in the October 2026 by-elections (110 total).
Secular Progressive Alliance (SPA / DMK+) Pre-Poll Multi-Party Alliance
Contested: 234 Won: 73 Lost: 161 Strike Rate: 31.20%
Pre-Poll Seat Sharing: DMK (188), INC (25), VCK (6), CPI (6), CPM (6), IUML (3). Seats Won: DMK 59, INC 5, IUML 2, VCK 2, CPI 2, CPM 2.
NDA - AIADMK+ Alliance Pre-Poll Multi-Party Alliance
Contested: 234 Won: 53 Lost: 181 Strike Rate: 22.65%
Pre-Poll Seat Sharing: AIADMK (180), PMK (23), BJP (20), DMDK (6), AMMK (5). Seats Won: AIADMK 47, PMK 4, BJP 1, DMDK 1, AMMK 1.
Naam Tamilar Katchi (NTK) Pre-Poll Solo Contest
Contested: 234 Won: 0 Lost: 234 Strike Rate: 0.00%
Contested all 234 constituencies independently without alliance; fielded 50% women candidates.
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Post-Election Government & Floor Alignment

Secular Social Justice Victory Alliance (SSJVA) formation & floor division
Secular Social Justice Victory Alliance (SSJVA / TVK+)
மதச்சார்பற்ற சமூகநீதி வெற்றிக் கூட்டணி
Ruling Majority Government
Legislative Strength: 123 Seats (Governing Coalition - Crossed 118 Majority Mark)
Floor Leadership: C. Joseph Vijay (22nd Chief Minister & SSJVA Chairman)
Following the 2026 election where TVK won 108 seats and subsequently won both October 2026 By-Elections (reaching 108 + 2 = 110 seats), the Secular Social Justice Victory Alliance (SSJVA / மதச்சார்பற்ற சமூகநீதி வெற்றிக் கூட்டணி) commands 123 seats to form the 17th Tamil Nadu Government under Chief Minister C. Joseph Vijay.
Dravida Munnetra Kazhagam (DMK)
Principal Opposition Party
Legislative Strength: 59 Seats
Floor Leadership: Udhayanidhi Stalin (Leader of Opposition)
With former pre-poll alliance partners (INC, IUML, VCK, CPI, CPM) departing to join TVK's Secular Social Justice Victory Alliance post-election, DMK stands as the single largest opposition party with 59 MLAs, leading the official opposition bench under Floor Leader Udhayanidhi Stalin.
AIADMK-led Alliance (NDA Front)
Secondary Opposition Bench
Legislative Strength: 53 Seats
Floor Leadership: Edappadi K. Palaniswami
Secondary opposition legislative group comprising AIADMK (47), PMK (4), BJP (1), DMDK (1), and AMMK (1), led by AIADMK General Secretary Edappadi K. Palaniswami.
Seat-Sharing Audits & Conversion Efficiency

Detailed Pre-Election Alliance Seat Sharing & Party-by-Party Performance

Granular breakdown of seats allocated to each constituent party, seats won, seats lost, strike rate percentages, and popular vote contribution.

Tamilaga Vettri Kazhagam (TVK)

Pre-Poll Solo Contest
Lead: C. Joseph Vijay
Contested: 234 Won: 108 Lost: 126 Strike Rate: 46.15%
Constituent Party Seats Contested Seats Won Seats Lost Strike Rate Popular Votes Vote Share % Key Leader / Floor Role
234 108 126
46.2%
17,226,209 34.92% C. Joseph Vijay (Party President)
Alliance Total (1 Parties) 234 108 126 46.15% 17,226,209 34.92% Single Largest Party & Lead Ruling Government (110 MLAs)

Secular Progressive Alliance (SPA / DMK+)

Pre-Poll Multi-Party Alliance
Lead: Udhayanidhi Stalin
Contested: 234 Won: 73 Lost: 161 Strike Rate: 31.20%
Constituent Party Seats Contested Seats Won Seats Lost Strike Rate Popular Votes Vote Share % Key Leader / Floor Role
188 59 129
31.4%
11,450,200 23.46% Udhayanidhi Stalin
25 5 20
20.0%
1,845,600 3.78% K. Selvaperunthagai
6 2 4
33.3%
432,100 0.89% Thol. Thirumavalavan
Communist Party of India (CPI)
Symbol: Ears of Corn & Sickle
6 2 4
33.3%
389,400 0.80% R. Mutharasan
Communist Party of India (Marxist) (CPM)
Symbol: Hammer, Sickle & Star
6 2 4
33.3%
378,200 0.77% K. Balakrishnan
3 2 1
66.7%
171,766 0.41% K. M. Kader Mohideen
Alliance Total (6 Parties) 234 73 161 31.20% 14,667,266 30.11% Principal Pre-Poll Front

NDA - AIADMK+ Alliance

Pre-Poll Multi-Party Alliance
Lead: Edappadi K. Palaniswami
Contested: 234 Won: 53 Lost: 181 Strike Rate: 22.65%
Constituent Party Seats Contested Seats Won Seats Lost Strike Rate Popular Votes Vote Share % Key Leader / Floor Role
180 47 133
26.1%
10,125,400 20.75% Edappadi K. Palaniswami
23 4 19
17.4%
1,895,200 3.88% Dr. Anbumani Ramadoss
20 1 19
5.0%
1,324,500 2.71% K. Annamalai
6 1 5
16.7%
345,000 0.71% Premallatha Vijayakanth
5 1 4
20.0%
324,660 0.67% T. T. V. Dhinakaran
Alliance Total (5 Parties) 234 53 181 22.65% 14,014,760 28.42% Third Alliance Front

Naam Tamilar Katchi (NTK)

Pre-Poll Solo Contest
Lead: Seeman
Contested: 234 Won: 0 Lost: 234 Strike Rate: 0.00%
Constituent Party Seats Contested Seats Won Seats Lost Strike Rate Popular Votes Vote Share % Key Leader / Floor Role
234 0 234
0.0%
1,972,537 4.00% Senthamizhan Seeman
Alliance Total (1 Parties) 234 0 234 0.00% 1,972,537 4.00% Unrepresented in Assembly
Governance & Assembly Majority

Post-Election Legislative Coalitions & Assembly Floor Alignments

Government majority formation, coalition partners supporting the Treasury Benches, and Official Opposition allocation.

Secular Social Justice Victory Alliance (SSJVA / TVK+)

மதச்சார்பற்ற சமூகநீதி வெற்றிக் கூட்டணி
Ruling Majority Government
123 Seats (Governing Coalition - Crossed 118 Majority Mark)
Floor Leader: C. Joseph Vijay (22nd Chief Minister & SSJVA Chairman)

Following the 2026 election where TVK won 108 seats and subsequently won both October 2026 By-Elections (reaching 108 + 2 = 110 seats), the Secular Social Justice Victory Alliance (SSJVA / மதச்சார்பற்ற சமூகநீதி வெற்றிக் கூட்டணி) commands 123 seats to form the 17th Tamil Nadu Government under Chief Minister C. Joseph Vijay.

Constituent Party Alignment:
Lead Ruling Party (110 MLAs) 110 MLAs
Ruling Alliance Partner 5 MLAs
Ruling Alliance Partner 2 MLAs
Ruling Alliance Partner 2 MLAs
Floor Support Partner 2 MLAs
Floor Support Partner 2 MLAs

Dravida Munnetra Kazhagam (DMK)

Principal Opposition Party
59 Seats
Floor Leader: Udhayanidhi Stalin (Leader of Opposition)

With former pre-poll alliance partners (INC, IUML, VCK, CPI, CPM) departing to join TVK's Secular Social Justice Victory Alliance post-election, DMK stands as the single largest opposition party with 59 MLAs, leading the official opposition bench under Floor Leader Udhayanidhi Stalin.

Constituent Party Alignment:
Principal Opposition Party 59 MLAs

AIADMK-led Alliance (NDA Front)

Secondary Opposition Bench
53 Seats
Floor Leader: Edappadi K. Palaniswami

Secondary opposition legislative group comprising AIADMK (47), PMK (4), BJP (1), DMDK (1), and AMMK (1), led by AIADMK General Secretary Edappadi K. Palaniswami.

Constituent Party Alignment:
Opposition Bloc Leader 47 MLAs
Opposition Front Partner 4 MLAs
Opposition Front Partner 1 MLAs
Opposition Front Partner 1 MLAs
Opposition Front Partner 1 MLAs
Authoritative Coalitions & Encyclopedic Context

Tamil Nadu Alliance Architecture & Encyclopedic Directory

Tamil Nadu state politics has evolved through distinct coalition phases: the DMK-led alliance (formed initially as DPA/SPA), the AIADMK-led alliance (NDA front), and the 2026 post-election emergence of the Secular Social Justice Victory Alliance (SSJVA / மதச்சார்பற்ற சமூகநீதி வெற்றிக் கூட்டணி) under Chief Minister C. Joseph Vijay.

Ruling Coalition

Secular Social Justice Victory Alliance

மதச்சார்பற்ற சமூகநீதி வெற்றிக் கூட்டணி (SSJVA / TVK+)

Founded at Panaiyur headquarters on September 9, 2026. Chaired by C. Joseph Vijay. Formed to command 121 seats and contest October 2026 by-elections.

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Historical Front

DMK-Led Alliance (SPA / DPA)

Secular Progressive Alliance (மதச்சார்பற்ற முற்போக்கு கூட்டணி)

Key political front in Tamil Nadu across 2004, 2006, 2019, 2021, and 2024 elections. Led historically by M. Karunanidhi and M. K. Stalin.

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Opposition Coalition

AIADMK-Led Alliance (NDA Front)

அஇஅதிமுக கூட்டணி (AIADMK-led Coalition)

Governed Tamil Nadu across 2011-2021 under J. Jayalalithaa and Edappadi K. Palaniswami. Currently commands 53 seats in the 17th Assembly.

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Historical Alliance Archive

Explore Tamil Nadu Alliance Breakdown Across Assembly Elections

2026 Alliances 2021 Alliances 2016 Alliances 2011 Alliances 2006 Alliances 2001 Alliances 1996 Alliances 1991 Alliances 1989 Alliances 1984 Alliances 1980 Alliances 1977 Alliances