ThinkPolitically/tamil-nadu-election-data

Tamil Nadu Assembly Election Results and Turnout 2011–2026

Version: 2.0.0
Compiled by: Think Politically
Released: 29 July 2026
License: CC BY 4.0 for this compilation
Primary publisher: Election Commission of India (ECI)
Citation page: https://thinkpolitically.com/tamil-nadu-election-report-2026/

What this dataset contains

This is a compact, source-linked compilation of official Tamil Nadu Legislative Assembly election data. Version 2 contains four independently loadable subsets:

1. Party seat totals for the 2026 election.
2. ECI vote-share categories and vote counts for the 2026 election.
3. The ECI turnout series for 2011, 2016, 2021 and the provisional close-of-poll figure for 2026.
4. Statewide 2026 election-administration metrics published by the ECI.

Every row includes a primary-source URL and retrieval date. Official results and provisional participation estimates are kept separate so downstream users do not mistake a close-of-poll estimate for a final turnout statistic.

Viewer-compatible subsets

The CSV files intentionally have different schemas because they represent different units of analysis. Hugging Face configs map each file to its own subset, so the Dataset Viewer and the datasets library do not cast unrelated tables into one schema.

Subset	File	Unit of analysis	Rows
party_seat_results_2026	tn_party_seat_results_2026.csv	Party winning at least one seat	12
vote_share_2026	tn_vote_share_2026.csv	ECI vote-share category	17
turnout_history_2011_2026	tn_turnout_history_2011_2026.csv	Election year	4
election_metadata_2026	tn_election_metadata_2026.csv	Statewide election metric	5

Load with Python

from datasets import load_dataset

party_results = load_dataset(
    "ThinkPolitically/tamil-nadu-election-data",
    "party_seat_results_2026",
)

turnout_history = load_dataset(
    "ThinkPolitically/tamil-nadu-election-data",
    "turnout_history_2011_2026",
)

Primary sources

• ECI party-wise seat results — Tamil Nadu 2026
• ECI party-wise vote shares and vote counts — Tamil Nadu 2026
• ECI press note ECI/PN/076/2026 — turnout and election-administration metrics
• ECI Tamil Nadu 2026 statistical report collection

The turnout and election-administration records were transcribed from the ECI press note dated 23 April 2026. The 2026 figure is 84.69% provisional close-of-poll participation, not a final turnout figure. It excludes postal ballots and was published while data from 6,411 polling stations remained pending.

Methodology

Party results

Party abbreviations and seats won were transcribed from the official ECI party-result table. The 12 party rows sum to 234 seats.

Vote shares and total votes were transcribed separately from the ECI vote-share table. They are not joined to the seat table because the ECI's Other vote category aggregates parties and independent candidates that are not listed separately in that table.

The published percentages are rounded to two decimal places by the source and therefore sum to 100.01%, while the vote counts sum to 49,324,121.

Turnout history

The four turnout values reproduce the historical series in the ECI's 23 April 2026 press note:

• 2011: 78.29%
• 2016: 74.81%
• 2021: 73.63%
• 2026: 84.69% provisional close-of-poll participation

No causal interpretation is attached to these statewide aggregates.

Election metadata

Polling stations, electors, candidates and polling agents are statewide administrative totals from the same ECI press note. The polling-agent total covers all parties, not TVK or any other single party.

Limitations and responsible use

• The 2026 participation figure is provisional, excludes postal ballots and should not be represented as final turnout.
• Aggregate results cannot identify voter demographics or prove that a campaign, booth network or consultant caused turnout or vote share.
• The ECI sources do not publish a TVK-specific polling-agent total in the records used here.
• The vote-share source includes an Other category aggregating parties and independent candidates not shown separately.
• This compilation is appropriate for descriptive analysis and visualisation. It should not be used as evidence of individual voter behaviour or campaign causation.

Version 2 correction notice

Version 1 combined unrelated CSV schemas, which caused DatasetGenerationCastError in the Hugging Face viewer. It also included estimated candidate margins, anonymised placeholder candidates, youth-turnout estimates and booth-organisation claims that were not reproducible from the cited public sources.

On 29 July 2026 those five files were withdrawn from the active dataset and replaced with the four ECI-sourced subsets above. The earlier 85.1% turnout statement was corrected to the ECI's 84.69% provisional close-of-poll figure. Repository history preserves v1 for auditability; it should not be treated as a verified research release.

Citation

Think Politically. (2026). Tamil Nadu Assembly Election Results and Turnout
2011–2026 (Version 2.0.0) [Data set]. Hugging Face.
https://huggingface.co/datasets/ThinkPolitically/tamil-nadu-election-data

When citing an individual statistic, also cite the ECI source URL stored in that row.

Contact and corrections

Report data or provenance issues through Think Politically's contact page and include the subset name, row and supporting primary source.