State Legislative Assembly (Vidhan Sabha)
● Completed
Tamil Nadu Assembly Election 2021 Results
Total Seats: 234 • Majority Mark: 118 • Voter Turnout: 73.63% • Parliamentary Seats: 39
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Constituency Directory
234
Council of Ministers
34
Alliances & Coalitions
Fronts
District Performance
38
Vote Share & Analytics
73.63%
Statistics & Demographics
1977–2026
By-Elections & Vacancies
3 Held
In-Depth Analytics
1977 – 2026 Historical Observatory
Tamil Nadu Assembly Election 2021 Statistics & Demographics
Explore granular candidate gender breakdown, age distribution, graduate qualification rates, statutory deposit forfeitures (by alliance and party), and 234 elected MLA profiles.
Official Election Schedule & Milestones (2021)
16th Tamil Nadu Legislative Assembly
Full Schedule →
ECI Statutory Schedule
Nomination Begins
12 Mar 2021
Nomination Deadline
19 Mar 2021
Scrutiny of Nominations
20 Mar 2021
Withdrawal Deadline
22 Mar 2021
Polling Day
06 Apr 2021
Counting of Votes
02 May 2021
Process Completion
04 May 2021
159
Governing Majority • 159 Seats
★ SWORN IN 07 MAY 2021
Party / Coalition
Secular Progressive Alliance (SPA / DMK Front)
Decisive victory mandate securing 159 seats and 45.38% vote share (20,982,088 votes), establishing the 16th Tamil Nadu Legislative Assembly.
DMK (133), INC (18), VCK (4), CPI (2), CPM (2)
Principal Opposition • 75 Seats
NDA Front
Opposition Alliance
National Democratic Alliance (NDA / AIADMK Front)
Leader of Opposition:
Edappadi K. Palaniswami (Leader of Opposition)
Popular Vote Performance
39.71% Vote Share • 18,363,499 Votes Polled
Other Major Alliances & Fronts
Electoral Coalition Summary (2021)
Naam Tamilar Katchi (NTK)
0 Seats
Finished in 3rd place across 168+ assembly constituencies
6.58% Vote Share • 3,042,307 Votes Polled
AMMK (165 contested), DMDK (60 contested)
2.78% Vote Share • 1,085,000 Votes Polled
Makkal Needhi Maiam Front
0 Seats
MNM (140 contested), AISMK (33), IJK (40)
2.45% Vote Share • 1,135,000 Votes Polled
High-Profile Battles & Defining Contests (2021)
Assembly Party Seat Distribution (2021)
Total Declared: 234 / 234 Seats • Majority: 118
| Party Name | Alliance | Seats Won | Seat Share | Total Votes |
|---|---|---|---|---|
| Secular Progressive Alliance (SPA) | 133 |
|
17,407,836 | |
| National Democratic Alliance (NDA) | 66 |
|
15,389,310 | |
| Secular Progressive Alliance (SPA) | 18 |
|
1,976,527 | |
| National Democratic Alliance (NDA) | 5 |
|
1,758,893 | |
| National Democratic Alliance (NDA) | 4 |
|
1,198,824 | |
| Secular Progressive Alliance (SPA) | 4 |
|
457,763 | |
| Secular Progressive Alliance (SPA) | 2 |
|
433,637 | |
| Secular Progressive Alliance (SPA) | 2 |
|
424,339 | |
| Secular Progressive Alliance (SPA) | 0 |
|
222,263 | |
| Independent / Others | 0 |
|
56,153 | |
| Independent / Others | 0 |
|
51,481 | |
| Independent / Others | 0 |
|
48,597 |
All 234 Assembly Constituencies & Winners (2021)
Live directory of all 234 assembly constituencies across 38 districts with complete winner, runner-up, and vote margins.
17th Tamil Nadu Legislative Assembly Leadership
Key constitutional office-bearers elected to preside over and steer the House.
Speaker of the Assembly
DMK
M. Appavu
Constituency: Radhapuram (General) (AC #228)
Presiding officer of the 16th Legislative Assembly, neutral constitutional arbiter in parliamentary debate.
Took office: 12 May 2021
Leader of the Opposition (LOP)
AIADMK
Edappadi K. Palaniswami
Constituency: Edappadi (General) (AC #86)
Official Leader of the Principal Opposition in the 16th Assembly, former Chief Minister.
Took office: 11 May 2021
Deputy Speaker
DMK
K. Pitchandi
Constituency: Keezhpennathur (AC #64)
Deputy presiding officer supporting assembly sessions and legislative house committees.
Took office: 12 May 2021
Chief Government Whip
DMK
Dr. K. Govi Chezhiaan
Constituency: Thiruvidaimarudur (AC #170)
Government whip overseeing ruling party attendance, floor strategy and legislative voting coordination.
Took office: 12 May 2021
Chief Minister of Tamil Nadu
M. K. Stalin
Elected from: Kolathur (AC #13) • Retained: Kolathur
Sworn in at Raj Bhavan
07 May 2021
Key Portfolios Held by Chief Minister:
Public & General Administration
Indian Administrative Service (IAS) & IPS
Home & Police Department
Special Programme Implementation
Welfare of Differently Abled Persons
Council of Ministers (Cabinet)
26 Cabinet Ministers sworn in pursuant to Article 163 & 164 of the Constitution of India.
Duraimurugan
DMK
Katpadi (AC #40) • 83 Yrs
Minister for Water Resources
Water Resources
Irrigation Projects
Mines and Minerals
Legislative Assembly.
K. N. Nehru
DMK
Tiruchirappalli (West) (AC #140) • 68 Yrs
Minister for Municipal Administration & Urban Water Supply
Municipal Administration
Urban Water Supply
Corporation and Municipal Infrastructure.
I. Periyasamy
DMK
Athoor (AC #129) • 68 Yrs
Minister for Rural Development
Rural Development
Panchayats and Panchayat Unions
Rural Indebtedness.
Dr. K. Ponmudi
DMK
Tirukkoyilur (AC #76) • 70 Yrs
Minister for Higher Education
Higher Education
Technical Education
Universities and Collegiate Administration.
E. V. Velu
DMK
Tiruvannamalai (AC #63) • 70 Yrs
Minister for Public Works & Highways
Public Works (Buildings)
Highways and Minor Ports.
M. R. K. Panneerselvam
DMK
Kurinjipadi (AC #156) • 63 Yrs
Minister for Agriculture & Farmers Welfare
Agriculture
Agricultural Engineering
Agro-Service Co-operatives
Horticulture
Sugarcane Development.
K. K. S. S. R. Ramachandran
DMK
Aruppukkottai (AC #206) • 71 Yrs
Minister for Revenue & Disaster Management
Revenue
District Revenue Establishment
Disaster Management
Relief and Rehabilitation.
Thangam Thennarasu
DMK
Tiruchuli (AC #208) • 55 Yrs
Minister for Finance & Human Resources
Finance
Planning
Human Resources Management
Pensions and Retirement Benefits.
Udhayanidhi Stalin
DMK
Chepauk-Thiruvallikeni (AC #19) • 44 Yrs
Deputy Chief Minister / Youth Welfare & Sports
Youth Welfare
Sports Development
Special Programme Implementation
Poverty Alleviation Programme.
S. Regupathy
DMK
Thirumayam (AC #180) • 70 Yrs
Minister for Law & Prisons
Law
Courts
Prison Department
Prevention of Corruption.
S. Muthusamy
DMK
Erode (West) (AC #99) • 72 Yrs
Minister for Housing & Prohibition
Housing and Urban Development
Chennai Metropolitan Development Authority (CMDA)
Prohibition and Excise.
K. R. Periakaruppan
DMK
Tiruppattur (AC #185) • 61 Yrs
Minister for Co-operation
Co-operation
Primary Agricultural Co-operative Credit Societies (PACCS)
Statistics.
T. M. Anbarasan
DMK
Alandur (AC #28) • 61 Yrs
Minister for MSME & Urban Habitat
Micro
Small and Medium Enterprises (MSME)
Tamil Nadu Urban Habitat Development Board.
M. P. Saminathan
DMK
Kangayam (AC #102) • 58 Yrs
Minister for Information & Publicity
Information and Publicity
Film Technology
Stationery and Printing
Government Press.
P. Geetha Jeevan
DMK
Thoothukkudi (AC #216) • 51 Yrs
Minister for Social Welfare & Women Empowerment
Social Welfare
Women Empowerment
Nutritious Noon Meal Programme
Orphanages.
Anitha R. Radhakrishnan
DMK
Tiruchendur (AC #215) • 68 Yrs
Minister for Fisheries & Animal Husbandry
Fisheries
Fishermen Welfare
Animal Husbandry
Dairying.
S. R. Rajakannappan
DMK
Mudukulathur (AC #212) • 73 Yrs
Minister for Backward Classes Welfare
Backward Classes Welfare
Most Backward Classes (MBC) Welfare
Denotified Communities.
R. Sakkarapani
DMK
Oddanchatram (AC #128) • 61 Yrs
Minister for Food & Civil Supplies
Food and Civil Supplies
Consumer Protection
Price Control
Public Distribution System (PDS).
V. Senthil Balaji
DMK
Karur (AC #135) • 45 Yrs
Minister for Electricity & Non-Conventional Energy
Electricity
Non-Conventional Energy Development
TANGEDCO
TANTRANSCO.
R. Gandhi
DMK
Ranipet (AC #41) • 68 Yrs
Minister for Handlooms & Textiles
Handlooms
Textiles
Co-optex
Khadi and Village Industries Board.
Ma. Subramanian
DMK
Saidapet (AC #24) • 61 Yrs
Minister for Health & Family Welfare
Health and Family Welfare
Medical Education
Family Welfare Schemes.
P. K. Sekar Babu
DMK
Harbour (AC #18) • 59 Yrs
Minister for Hindu Religious & Charitable Endowments (HR&CE)
Hindu Religious and Charitable Endowments (HR&CE)
CMDA.
Dr. Palanivel Thiaga Rajan (PTR)
DMK
Madurai Central (AC #191) • 55 Yrs
Minister for Information Technology & Digital Services
Information Technology and Digital Services
ELCOT
Tamil Nadu e-Governance Agency (TNeGA).
Anbil Mahesh Poyyamozhi
DMK
Thiruverumbur (AC #142) • 43 Yrs
Minister for School Education
School Education
Illam Thedi Kalvi
Naan Mudhalvan school skilling modules.
Siva. V. Meyyanathan
DMK
Alangudi (AC #182) • 52 Yrs
Minister for Environment & Climate Change
Environment
Pollution Control
Climate Change
Youth Welfare and Sports Development.
C. V. Ganesan
DMK
Tittakudi (SC) (AC #151) • 62 Yrs
Minister for Labour Welfare & Skill Development
Labour Welfare
Population
Employment and Training
Skill Development.
T. Mano Thangaraj
DMK
Padmanabhapuram (AC #232) • 54 Yrs
Minister for Milk & Dairy Development
Milk and Dairy Development
Aavin Milk Producers Federation.
Dr. M. Mathiventhan
DMK
Rasipuram (SC) (AC #92) • 41 Yrs
Minister for Forests
Forests
Wildlife Protection
Biosphere Reserves
Eco-Tourism.
N. Kayalvizhi Selvaraj
DMK
Dharapuram (SC) (AC #101) • 51 Yrs
Minister for Human Resources / Adi Dravidar Welfare
Adi Dravidar Welfare
Hill Tribes Welfare
TAHDCO Loan Schemes.
Dr. T. R. B. Rajaa
DMK
Mannargudi (AC #167) • 45 Yrs
Minister for Industries, Investment Promotion & Commerce
Industries
Investment Promotion
Commerce
SIPCOT
TIDCO
Guidance Tamil Nadu.
District-Wise Assembly Performance (All 38 Districts)
Breakdown of assembly seats won across districts by contesting parties and alliances in the 2021 election.
| District | Total Seats | DMK Front (SPA) | AIADMK Front (NDA) | Others | Alliance Distribution | Dominant Block | Action |
|---|---|---|---|---|---|---|---|
| Ariyalur | 2 | 2 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Chengalpattu | 8 | 7 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Chennai | 16 | 16 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Coimbatore | 10 | 0 | 10 | 0 |
|
AIADMK / NDA Lead | Explore → |
| Cuddalore | 9 | 7 | 2 | 0 |
|
DMK / SPA Lead | Explore → |
| Dharmapuri | 5 | 0 | 5 | 0 |
|
AIADMK / NDA Lead | Explore → |
| Dindigul | 7 | 4 | 3 | 0 |
|
DMK / SPA Lead | Explore → |
| Erode | 8 | 3 | 5 | 0 |
|
AIADMK / NDA Lead | Explore → |
| Kallakkurichi | 5 | 4 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Kancheepuram | 3 | 3 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Kanniyakumari | 6 | 4 | 2 | 0 |
|
DMK / SPA Lead | Explore → |
| Karur | 4 | 4 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Krishnagiri | 6 | 3 | 3 | 0 |
|
Divided | Explore → |
| Madurai | 10 | 5 | 5 | 0 |
|
Divided | Explore → |
| Mayiladuthurai | 3 | 3 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Nagapattinam | 3 | 2 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Namakkal | 6 | 4 | 2 | 0 |
|
DMK / SPA Lead | Explore → |
| Nilgiris | 3 | 2 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Perambalur | 2 | 2 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Pudukkottai | 6 | 5 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Ramanathapuram | 4 | 4 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Ranipet | 4 | 3 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Salem | 11 | 1 | 10 | 0 |
|
AIADMK / NDA Lead | Explore → |
| Sivaganga | 4 | 3 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Tenkasi | 5 | 3 | 2 | 0 |
|
DMK / SPA Lead | Explore → |
| Thanjavur | 8 | 7 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Theni | 4 | 3 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Thiruvallur | 10 | 10 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Thoothukkudi | 6 | 5 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Tiruchirappalli | 9 | 9 | 0 | 0 |
|
DMK / SPA Lead | Explore → |
| Tirunelveli | 5 | 3 | 2 | 0 |
|
DMK / SPA Lead | Explore → |
| Tirupathur | 4 | 3 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Tiruppur | 8 | 3 | 5 | 0 |
|
AIADMK / NDA Lead | Explore → |
| Tiruvannamalai | 8 | 6 | 2 | 0 |
|
DMK / SPA Lead | Explore → |
| Tiruvarur | 4 | 3 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Vellore | 5 | 4 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
| Viluppuram | 6 | 3 | 3 | 0 |
|
Divided | Explore → |
| Virudhunagar | 7 | 6 | 1 | 0 |
|
DMK / SPA Lead | Explore → |
Key Demographic & Participation Metrics
Dedicated Analytics →Overall Voter Turnout
73.63%
Total Registered Electors
6,29,43,693 (6.29 Cr)
Across all 38 districts
Valid Votes Polled
4,63,44,590 (4.63 Cr)
High civic engagement
Contesting Candidates
3,998
411 Women • 3585 Men
Alliance Popular Vote Breakdown
SPA
45.38%
Secular Progressive Alliance (SPA / DMK Front)
Governing Majority Coalition (159 Seats) • 159 Seats
Popular Votes: 20,982,088
NDA
39.71%
National Democratic Alliance (NDA / AIADMK Front)
Principal Opposition Coalition (75 Seats) • 75 Seats
Popular Votes: 18,363,499
NTK
6.58%
Naam Tamilar Katchi (NTK)
Third Largest Political Force (Contested all 234 seats independently with 50% women candidates) • 0 Seats
Popular Votes: 3,042,307
AMMK
2.78%
Amma Makkal Munnettra Kazagam Front
Alliance with DMDK and SDPI • 0 Seats
Popular Votes: 1,085,000
MNM
2.45%
Makkal Needhi Maiam Front
Alliance with AISMK and IJK • 0 Seats
Popular Votes: 1,135,000
Party-Wise Popular Vote Share & Seat Conversion
| Party Name | Seats Won | Vote Share (%) | Total Popular Votes |
|---|---|---|---|
|
Dravida Munnetra Kazhagam
(DMK)
|
133 |
|
17,430,179 |
|
All India Anna Dravida Munnetra Kazhagam
(AIADMK)
|
66 |
|
15,391,055 |
|
Naam Tamilar Katchi
(NTK)
|
0 |
|
3,042,307 |
|
Indian National Congress
(INC)
|
18 |
|
1,976,527 |
|
Pattali Makkal Katchi
(PMK)
|
5 |
|
1,758,774 |
|
Bharatiya Janata Party
(BJP)
|
4 |
|
1,213,670 |
|
Makkal Needhi Maiam
(MNM)
|
0 |
|
1,135,000 |
|
Amma Makkal Munnettra Kazagam
(AMMK)
|
0 |
|
1,085,000 |
|
Communist Party of India
(CPI)
|
2 |
|
504,537 |
|
Viduthalai Chiruthaigal Katchi
(VCK)
|
4 |
|
457,763 |
|
Communist Party of India (Marxist)
(CPM)
|
2 |
|
390,819 |
|
Indian Union Muslim League
(IUML)
|
0 |
|
222,263 |
|
None of the Above
(NOTA)
|
0 |
|
345,591 |
Completed Assembly By-Elections (2021)
Official by-polls notified under Section 151A of the Representation of the People Act, 1951.
Seat #98 • Erode
Completed (Held 27 Feb 2023)
Erode (East)
Polling Date
27 February 2023
Counting Date
02 March 2023
🏆 E. V. K. S. Elangovan (INC)
110,156 votes (64.58%) • Margin: +66,233
Runner-up: K. S. Thennarasu (AIADMK)
Statutory Basis: Section 151A of the Representation of the People Act, 1951 (Casual Vacancy in State Legislature).
Seat #75 • Viluppuram
Completed (Held 10 July 2024)
Vikravandi
Polling Date
10 July 2024
Counting Date
13 July 2024
🏆 Anniyur Siva (DMK)
124,053 votes (63.22%) • Margin: +67,757
Runner-up: C. Anbumani (PMK)
Statutory Basis: Section 151A of the Representation of the People Act, 1951.
Seat #233 • Kanniyakumari
Completed (Held 19 April 2024)
Vilavancode
Polling Date
19 April 2024
Counting Date
04 June 2024
🏆 Tharahai Cuthbert (INC)
91,054 votes (57.71%) • Margin: +40,174
Runner-up: V. S. Nanthini (BJP)
Statutory Basis: Article 190(3)(b) Resignation of seat by Member of Legislative Assembly.
Constitutional & Statutory Framework for By-Elections
Section 151A, RPA 1951
Mandates that by-elections to fill casual vacancies in State Legislatures must be conducted within six months of vacancy occurrence, unless the remainder of the term is less than one year.
Article 190(3)(b), Constitution of India
Provides that if a member of the Legislative Assembly resigns their seat by writing addressed to the Speaker and the resignation is accepted, the seat shall thereupon become vacant (invoked in Vilavancode vacancy).
Section 149, RPA 1951
Governs notification of casual vacancies in state legislative assemblies upon demise or disqualification of sitting members (invoked in Erode East and Vikravandi vacancies).
10th Schedule Anti-Defection Law
Disqualification of elected legislators on grounds of defection if they voluntarily give up membership of their political party.