CPI(M)CPI(M) booth-level extremes
Of the 234 seats in the Tamil Nadu 2026 Assembly, CPI(M) contested 5 inside the SPA alliance — the state-level reflection of the INC-led UPA / INDIA bloc.
- Booths analysed
- 1,199
- Constituencies
- 5
- Minimum valid votes in a booth
- 200
Booth share spectrum
1,199 contested boothsHow every booth this party contested distributes by share — from wipeout (red) to fortress (green). Most booths sit in the strong band (30–50%) — 45% of contested booths.
Fortressesbooths above 80% share
2CPI(M) crossed 80% share in 2 polling stations — both in the Padmanabhapuram (Kanyakumari) and Palani constituencies, the two seats where the party’s old-left floor runs deepest.
Hot pocketsbooth share far above AC average
1212 booths show CPI(M)’s share jumping 35+ points above its AC average. Palani and Padmanabhapuram provide most of the cluster, again reflecting concentrated organisational depth inside contested seats.
Knife-edgesbooths decided by 2 votes or fewer
10CPI(M) won 8 polling stations by 2 votes or fewer — a sharply positive spine, with Palani providing the densest cluster.
Wins · 8
CPI(M) 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.
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