BJP · booth-by-booth

BJPBJP booth-level extremes

Of the 234 seats in the Tamil Nadu 2026 Assembly, BJP contested 31 as a member of the NTDA alliance — the state-level reflection of the BJP-led NDA.

Booths analysed: 8,255
Constituencies: 31
Minimum valid votes in a booth: 200

Booth share spectrum

8,255 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%) — 45% of contested booths.

2,103

3,723

1,773

Wipeout 0–1%

104 · 1.3%

Very weak 1–5%

325 · 3.9%

Weak 5–15%

2,103 · 25.5%

Competitive 15–30%

3,723 · 45.1%

Strong 30–50%

1,773 · 21.5%

Dominant 50–80%

225 · 2.7%

Fortress 80%+

2 · 0.0%

Fortressesbooths above 80% share

BJP crossed 80% share in 2 polling stations — both in the Kanyakumari Christian-belt seats. Outside that southern coastal cluster, the party does not reach fortress depth anywhere in TN 2026.

AC 231

Colachal

AC 231 · Booth 282 · Govt H.S.Peyankuzhi · Kanniyakumari

AC 231 · Booth 231 · terrased · Kanniyakumari

80.4%

520 / 647 votes

Wipeoutsbooths below 1% share

104

BJP dropped below 1% share in 104 booths — the highest wipeout count of any party. That this happens inside a 31-seat contesting footprint, not across all 234, is what makes the number striking.

AC 41

Ranipet

AC 41 · Booth 50 · Melvisharam · Ranipet

AC 41 · Booth 51 · Melvisharam · Ranipet

AC 215 · Booth 135 · kayalpattinam · Thoothukudi

AC 215 · Booth 145 · kayalpattinam · Thoothukudi

AC 215 · Booth 144 · Kayalpattanam · Thoothukudi

AC 215 · Booth 139 · Kayalapattanam · Thoothukudi

AC 215 · Booth 132 · kayalpattinam · Thoothukudi

AC 220 · Booth 161 · Tenkasi

AC 215 · Booth 142 · kayalpattinam · Thoothukudi

AC 41 · Booth 68 · Melvisharam · Ranipet

0.20%

1 / 512 votes

Hot pocketsbooth share far above AC average

45 booths show BJP’s share jumping 35+ points above its AC average. The Kanyakumari Christian belt provides most of the sharpest jumps; central-Chennai urban booths add a second smaller cluster.

AC 231

Colachal

AC 231 · Booth 282 · Govt H.S.Peyankuzhi · Kanniyakumari

+54.3%

booth 81.7% vs AC avg

AC 231

Colachal

AC 231 · Booth 231 · terrased · Kanniyakumari

+53.0%

booth 80.4% vs AC avg

AC 231

Colachal

AC 231 · Booth 258 · S.S.Neyyoor · Kanniyakumari

+49.9%

booth 77.3% vs AC avg

AC 231

Colachal

AC 231 · Booth 298 · chool Villukuri · Kanniyakumari

+48.9%

booth 76.3% vs AC avg

AC 211

RAMANATHAPURAM

AC 211 · Booth 196 · Regunathapuram · Ramanathapuram

+46.9%

booth 71.3% vs AC avg

AC 25

MYLAPORE

AC 25 · Booth 43 · Teynampet · Chennai

+46.9%

booth 68.5% vs AC avg

AC 231

Colachal

AC 231 · Booth 301 · Parasery · Kanniyakumari

+46.8%

booth 74.2% vs AC avg

AC 231

Colachal

AC 231 · Booth 127 · Govt P.S.Pilacode · Kanniyakumari

+46.3%

booth 73.7% vs AC avg

AC 211

RAMANATHAPURAM

AC 211 · Booth 194 · Nainamaraikkan · Ramanathapuram

+45.9%

booth 70.3% vs AC avg

AC 211

RAMANATHAPURAM

AC 211 · Booth 197 · Regunathapuram · Ramanathapuram

+45.1%

booth 69.5% vs AC avg

Knife-edgesbooths decided by 2 votes or fewer

BJP won 34 polling stations by 2 votes or fewer. A small but meaningful spine inside the Chennai-metro contests, where triangular fights produced the thinnest margins.

Wins · 34

AC 25

MYLAPORE

AC 25 · Booth 145 · Prof Sanjivi Street Mylapore · Chennai

AC 92 · Booth 3 · Namakkal

AC 92 · Booth 108 · Namakkal

AC 112 · Booth 140 · Pongalur · Tiruppur

AC 112 · Booth 142 · Dhasarapalayam · Tiruppur

AC 128 · Booth 98 · PORULUR · Dindigul

AC 171 · Booth 214 · Kumbakonam · Thanjavur

AC 187 · Booth 66 · ILANTHAIKULAM · Sivaganga

AC 202 · Booth 213 · Muthusamypuram · Virudhunagar

AC 204 · Booth 48 · Chathirapatti · Virudhunagar

+1vote

36.3% share

Losses · 35

AC 92

Rasipuram

AC 92 · Booth 220 · Namakkal

AC 99 · Booth 231 · Molagoundampalayam · Erode

AC 100 · Booth 46 · Nathagoundanpalayam · Erode

AC 112 · Booth 55 · Kariyagoundanur · Tiruppur

AC 112 · Booth 174 · Vadugapalayam · Tiruppur

AC 112 · Booth 272 · Assanallipalayam · Tiruppur

AC 168 · Booth 302 · Govt.Hr.Sec.School Pullamangalam · Thiruvarur

AC 204 · Booth 151 · Perapatti · Virudhunagar

AC 215 · Booth 115 · Arumuganeri · Thoothukudi

AC 215 · Booth 239 · Vellalanvillai · Thoothukudi

-1vote

30.8% share

Alliance lens

BJP is part of NTDA — National Triumphant Democratic Alliance

State-level reflection of the BJP-led NDA. BJP is a member; AIADMK leads at state level. Members: AIADMK, PMK, BJP, AMMK.

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.

TVK43.3%DMK39.4%AIADMK35.1%NTK4.9%PMK40.9%INC31.7%AMMK20.5%VCK52.0%

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

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Booth share spectrum

Fortressesbooths above 80% share

Wipeoutsbooths below 1% share

Hot pocketsbooth share far above AC average

Knife-edgesbooths decided by 2 votes or fewer

Wins · 34

Losses · 35

Methodology & Sources

Compare BJP’s booths with other parties