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AC 32 · Chengalpattu District · Tamil Nadu

Chengalpattu

2026 Legislative Assembly · Result declared 04 May 2026 · ECI official
The story

Chengalpattu — TVK takes the district HQ by 35,641 votes, ends DMK Varalakshmi's two-term run

TVK's S. Thiyagarajan won Chengalpattu — the district HQ seat — by 35,641 votes over DMK's Karthikdhandapani, ending the two-term run of DMK's M. Varalakshmi (Madhusoodhanan), who had held the seat in 2016 (26,292 margin) and 2021 (26,665). The seat's history is a textbook three-cornered Chengalpattu fight — PMK's K. Arumugam took it in 2006 (10,213 margin), DMDK's D. Murugesan flipped it on a 291-vote knife-edge in 2011 (TN's tightest result that cycle), and DMK's Varalakshmi consolidated it from 2016. The 2026 result is the largest margin Chengalpattu has produced this delimitation cycle.

S. THIYAGARAJAN
Winner · MLA-elect
S. THIYAGARAJAN
TVK
1,37,136 votes (42.56% of polled)
Runner-up: KARTHIKDHANDAPANI (DMK) with 1,01,495 votes — trailed by 35,641 votes (11.06% of polled).
Margin
35,641
votes
Polled
3,22,207
total votes cast
Candidates
16
on the ballot
Winner share
42.56%
of polled

Vote share — top finishers

Top 5 candidates

# Candidate Party Votes Share
1S. THIYAGARAJANTVK1,37,13642.56%
2KARTHIKDHANDAPANIDMK1,01,49531.50%
3M.GAJENDRANAIADMK69,76321.65%
4AMUTHA.NNTK12,0323.73%
5NOTANOTA1,3950.43%

Postal ballot breakdown

Postal ballots are counted before EVM rounds and reflect votes cast by polling-duty staff, government officers on election duty, and absentee voters. 1,956 postal ballots were counted in this constituency.

Postal-ballot leader differs from overall winner. DMK KARTHIKDHANDAPANI led postal ballots (780), but TVK S. THIYAGARAJAN won the seat overall (1,37,136).

#CandidatePartyPostal votesEVM votesTotal
1KARTHIKDHANDAPANIDMK7801,00,7151,01,495
2S. THIYAGARAJANTVK5581,36,5781,37,136
3M.GAJENDRANAIADMK48369,28069,763
4AMUTHA.NNTK9011,94212,032
5NOTANOTA191,3761,395

Source: Election Commission of India · Form 20 data via results.eci.gov.in

How this seat compares

Past results

Verified winners and runners-up across the last five elections, with the major alliance partners each side fielded.

2026
S. ThiyagarajanTVK
runner-upKarthikdhandapaniDMK
35,641vote margin
2021
M. VaralakshmiDMK
runner-upM. GajendranAIADMK
26,665vote margin
2016
M. VaralakshmiDMK
runner-upR. KamalakkannanAIADMK
26,292vote margin
2011
D. MurugesanAIADMKDMDK
runner-upV. G. RangasamyDMKPMK
291vote margin
2006pre-delim.
K. ArumugamDMKPMK
runner-upS. ArumugamAIADMK
10,213vote margin

Chengalpattu's 2011 contest produced one of TN's most famous photo-finishes — DMDK's D. Murugesan beat PMK's V. G. Rangasamy by just 291 votes. DMK's Varalakshmi won twice consecutively in 2016 and 2021 with near-identical 26K margins; TVK's 35,641-vote 2026 result is the largest produced in the post-2008 era.

About Chengalpattu

Chengalpattu — AC 32 — is the headquarters of Chengalpattu district, the Vijayanagara-era 'Chengai' that gave the district its name. The town sits on the Buckingham Canal–Palar river belt, 55 km south of Chennai on NH-32, and is best known for the Chengalpattu Medical College (one of TN's oldest, established 1965) and the rock-cut Narasimha temple on the town's signature hill. The constituency has been a swing seat through the post-2008 era — PMK, DMDK, DMK and now TVK have each carried it once in this delimitation cycle.

From TN Explorer

Chengalpattu

District HQ, Pallava forts and a hill-temple over the Palar

Chengalpattu is the Palar-belt headquarters where the Vijayanagara fort once stood — the small hill above town carries a Narasimha cave shrine and a view of the river plain, the medical college's heritage block has been training doctors since 1965, and the town's lakes (Chengalpattu Big Lake, Singaperumal Koil tank) are stops on the Pulicat-to-Pichavaram migratory bird route. Drive 30 km west to Mamandur's Pallava cave temples or south to Mahabalipuram's shore.

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