INC · booth-by-booth

INCINC booth-level extremes

Of the 234 seats in the Tamil Nadu 2026 Assembly, INC contested 26 as the national-bloc anchor inside the SPA alliance — the state-level reflection of the INC-led UPA / INDIA bloc.

Booths analysed
7,540
Constituencies
26
Minimum valid votes in a booth
200

Booth share spectrum

7,540 contested booths

How every booth this party contested distributes by share — from wipeout (red) to fortress (green). Most booths sit in the competitive band (15–30%) — 60% of contested booths.

Wipeout 0–1%
0 · 0.0%
Very weak 1–5%
13 · 0.2%
Weak 5–15%
589 · 7.8%
Competitive 15–30%
4,534 · 60.1%
Strong 30–50%
2,084 · 27.6%
Dominant 50–80%
291 · 3.9%
Fortress 80%+
29 · 0.4%

Fortressesbooths above 80% share

29

INC crossed 80% share in 29 polling stations — most concentrated in Tirunelveli district’s Pathamadai/Ambasamudram belt, with a smaller cluster in Chennai-metro old-Congress neighbourhoods. These booths represent surviving party depth, not alliance transfer.

AMBASAMUDRAM
AC 225 · Booth 282 · PATHAMADAI · Tirunelveli
90.1%
609 / 676 votes
NANGUNERI
AC 227 · Booth 132 · Tirunelveli
86.2%
488 / 566 votes
MAYILADUTHURAI
AC 161 · Booth 97 · Neivasal Ganganamputhur · Mayiladuthurai
86.2%
579 / 672 votes
NANGUNERI
AC 227 · Booth 138 · ERUVADI · Tirunelveli
86.1%
609 / 707 votes
NANGUNERI
AC 227 · Booth 141 · ERUVADI · Tirunelveli
85.3%
522 / 612 votes
TIRUVADANAI
AC 210 · Booth 250 · Devipattinam · Ramanathapuram
85.0%
431 / 507 votes
SRIVAIKUNTAM
AC 216 · Booth 31 · Middle · Thoothukudi
85.0%
458 / 539 votes
NANGUNERI
AC 227 · Booth 135 · Tirunelveli
84.9%
417 / 491 votes
SINGANALLUR
AC 121 · Booth 307 · Coimbatore
84.4%
660 / 782 votes
Colachal
AC 231 · Booth 88 · Colachel · Kanniyakumari
83.8%
414 / 494 votes

Hot pocketsbooth share far above AC average

118

118 booths show INC’s share jumping 35+ points above its AC average — the highest hot-pocket volume in TN 2026, evidence of concentrated party depth inside contested seats. Tirunelveli, Tiruchirappalli and Karur districts contribute most of the cluster.

SRIVAIKUNTAM
AC 216 · Booth 31 · Middle · Thoothukudi
+61.5%
booth 85.0% vs AC avg
AMBASAMUDRAM
AC 225 · Booth 282 · PATHAMADAI · Tirunelveli
+61.0%
booth 90.1% vs AC avg
SRIVAIKUNTAM
AC 216 · Booth 175 · Thoothukudi
+59.9%
booth 83.4% vs AC avg
NANGUNERI
AC 227 · Booth 132 · Tirunelveli
+58.2%
booth 86.2% vs AC avg
NANGUNERI
AC 227 · Booth 138 · ERUVADI · Tirunelveli
+58.1%
booth 86.1% vs AC avg
SANKARANKOVIL (SC)
AC 219 · Booth 46 · Kalugumalai Road Sankarnakovil · Tenkasi
+57.5%
booth 79.2% vs AC avg
NANGUNERI
AC 227 · Booth 141 · ERUVADI · Tirunelveli
+57.3%
booth 85.3% vs AC avg
NANGUNERI
AC 227 · Booth 135 · Tirunelveli
+56.9%
booth 84.9% vs AC avg
SANKARANKOVIL (SC)
AC 219 · Booth 45 · Sankarnakovil · Tenkasi
+56.8%
booth 78.5% vs AC avg
SANKARANKOVIL (SC)
AC 219 · Booth 50 · Sankarankovil · Tenkasi
+56.4%
booth 78.2% vs AC avg

Knife-edgesbooths decided by 2 votes or fewer

61

INC won 37 polling stations by 2 votes or fewer. The knife-edge wins concentrate in Chennai-metro seats where triangular fights compressed margins.

Wins · 37

VELACHERY
AC 26 · Booth 127 · VELACHERY · Chennai
+1vote
41.8% share
Pennagaram
AC 58 · Booth 156 · Pennagaram · Dharmapuri
+1vote
38.1% share
KAVUNDAMPALAYAM
AC 117 · Booth 76 · NGGO Colony Ashokapuram · Coimbatore
+1vote
32.4% share
KAVUNDAMPALAYAM
AC 117 · Booth 272 · Manjeeswari Colony Kavundampalayam · Coimbatore
+1vote
35.1% share
SINGANALLUR
AC 121 · Booth 356 · Coimbatore
+1vote
34.0% share
Cuddalore
AC 155 · Booth 70 · Velisemmandalam · Cuddalore
+1vote
32.8% share
MELUR
AC 188 · Booth 4 · Pottapatti · Madurai
+1vote
39.2% share
USILAMPATTI
AC 197 · Booth 170 · Pappapatti · Madurai
+1vote
28.4% share
SIVAKASI
AC 205 · Booth 61 · Sivakasi · Virudhunagar
+1vote
33.3% share
SIVAKASI
AC 205 · Booth 237 · Sivakasi · Virudhunagar
+1vote
38.8% share

Losses · 24

SRIPERUMBUDUR (SC)
AC 29 · Booth 233 · Kundrathur · Kancheepuram
-1vote
35.0% share
UDHAGAMANDALAM
AC 108 · Booth 86 · KAKKATHOPE · The Nilgiris
-1vote
36.8% share
SINGANALLUR
AC 121 · Booth 209 · Kamarajar Road Uppilipalayam · Coimbatore
-1vote
37.5% share
Cuddalore
AC 155 · Booth 121 · Vilvarayanatham Colony · Cuddalore
-1vote
33.0% share
MAYILADUTHURAI
AC 161 · Booth 290 · Adiyamangalam Mayiladuthurai · Mayiladuthurai
-1vote
35.1% share
SIVAKASI
AC 205 · Booth 103 · Thiruthangal · Virudhunagar
-1vote
33.2% share
TIRUVADANAI
AC 210 · Booth 216 · IRUDAYAPURAM · Ramanathapuram
-1vote
33.5% share
Colachal
AC 231 · Booth 133 · Palayam · Kanniyakumari
-1vote
36.1% share
SRIPERUMBUDUR (SC)
AC 29 · Booth 266 · Thirumudivakkam · Kancheepuram
-2vote
36.2% share
ATTUR (SC)
AC 82 · Booth 165 · National Aided Middle School-Thayumanavar Street Attur · Salem
-2vote
33.1% share
Alliance lens

INC is part of SPA — Secular Progressive Alliance

State-level reflection of the INC-led UPA / INDIA-bloc coalition. Congress is a member; DMK leads at state level. Members: DMK, INC, VCK, CPI, CPI(M), IUML, MDMK, DMDK.

Methodology & Sources

Source data: ECI Form 20 (statutory booth-level result statements) for all 234 Tamil Nadu Assembly Constituencies, 2026. Per-AC files committed at data/ac-drilldown/.

Booth-size threshold: only polling stations with at least 200 valid votes are included in any list. This excludes micro-booths (typically auxiliary stations with <100 voters) where a 100% share is statistically trivial.

Extremes-only framing: averages, by-district rollups, and median statistics are deliberately omitted. Each list is gated by a hard threshold — fortresses (≥80% share), wipeouts (<1% share), hot/cold pockets (booth share ±35 percentage points from AC average), knife-edges (margin ≤2 votes).

Alliance composition: TN 2026 alliances are hand-curated in data/ac-insights/context/alliances.json. SPA (DMK + INC + VCK + CPI + CPI(M) + IUML + MDMK + DMDK) reflects the INC-led UPA / INDIA bloc at state level. NTDA (AIADMK + PMK + BJP + AMMK) reflects the BJP-led NDA. TVK and NTK contested alone, outside both national blocs.

Demographic tags: only two are used — minority_muslim_area and minority_christian_area — applied to a small hand-curated list of widely-known localities (10 Muslim-area locality keywords; 4 ACs in the Kanyakumari Christian belt). Tags describe locality context, not voter intent. Caste demographics, population numbers, and Census citations are deliberately not used; readers can infer further context from booth names, AC names, and district names. SC-reserved seats are already labelled in the AC name itself.

Numbers from Form 20, narration from this site’s editorial layer. Every number in this page traces back to a row in the per-AC drilldown JSON.

Compare INC’s booths with other parties

TVK43.3%DMK39.4%AIADMK35.1%NTK4.9%PMK40.9%BJP26.8%AMMK20.5%VCK52.0%

Or put two parties side by side in the party comparison tool.

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