West Bengal Election Data Reveals Sharp Divide In Turnout, Victory Margins, Electoral Roll Revision

Last Updated:May 10, 2026, 15:57 IST

The BJP registered the largest winning margins in North Bengal, while minority-dominated border seats recorded the highest SIR deletions.

The Election Commission of India has published detailed Index Cards and Statistical Reports for the 2026 Assembly elections through the ECINET platform within 72 hours of declaration of results, marking what the Commission described as its fastest-ever release of election statistical data.

The reports cover all 830 Assembly constituencies that went to the polls across India. In West Bengal, the data excludes the Falta Assembly constituency, where repolling has been scheduled for May 21.

The statistical tables provide constituency-wise information on:

• voter turnout,
• gender participation,
• winning margins,
• electoral roll revisions,
• deletions and additions under the Special Intensive Revision (SIR),
• and constituency-level electoral trends.

The West Bengal data reveals stark regional contrasts in electoral participation, competitiveness and voter roll changes.

BJP Registers Largest Winning Margins in North Bengal

Among the five constituencies with the highest winning margins, the BJP secured victory in three seats, largely concentrated in North Bengal and border districts.

The top five constituencies by winning margin were:

The data suggests BJP’s strongest dominance remained concentrated in North Bengal and urban-border constituencies, while AITC retained large margins in parts of South 24 Parganas and Kolkata-adjacent minority-dominated belts.

In contrast, several BJP victories came by extremely narrow margins.

The five lowest winning margins were:

These figures indicate a highly competitive electoral landscape in several South Bengal constituencies.

Bhangar Records Highest Turnout in State

The constituency with the highest total polling percentage in West Bengal was Bhangar, which recorded 98.07% turnout.

The top five constituencies by polling percentage were:

The exceptionally high turnout figures were concentrated in rural South Bengal and border districts.

The lowest turnout figures were recorded in the hill constituencies:

All five low-turnout constituencies were won by BJP.

Female Participation Highest in Raghunathganj

Among female voters, Raghunathganj recorded the highest female polling percentage at 97.93%.

Other constituencies with female turnout above 97% included:

• Sitalkuchi
• Bhagawangola
• Canning Purba
• Bhangar

The lowest female turnout was recorded in:

• Kalimpong — 82.21%
• Darjeeling — 82.77%
• Kurseong — 83.78%

Among male voters, Bhangar recorded the highest male polling percentage at 98.08%, while Kandi recorded the lowest male turnout at 75.52%.

SIR Data Shows Massive Electoral Roll Changes in Minority-Dominated Belts

One of the most significant trends in the statistical report relates to changes in electoral rolls under the Special Intensive Revision (SIR).

The highest deletions of “ineligible electors" were concentrated in AITC-held constituencies in Malda and Murshidabad districts.

The five constituencies with the highest deletions were:

In Sujapur alone, the electorate declined from 2,72,097 electors on October 27, 2025 to 1,21,687 electors by February 28, 2026.

The deletion percentage was approximately:

(150410 / 272097) × 100 ≈ 55.3%

All five constituencies are represented by AITC and are located in minority-dominated border regions.

In contrast, the lowest deletions were recorded in BJP-held constituencies:

Large-Scale Re-Addition of Electors After SIR

Despite recording the highest deletions, Sujapur also saw the highest addition of eligible electors after February 28 under Section 23(3) of the Representation of the People Act, 1950.

The top five constituencies by post-SIR voter additions were:

The lowest additions were recorded in:

• Krishnanagar Dakshin
• Gosaba
• Krishnanagar Uttar
• Raipur
• Narayangarh

Each recorded fewer than 1,250 additions.

ECI Says Data Based on Final Statutory Forms

In its press note, the Election Commission stated that:

• The Index Cards and Statistical Reports are prepared from statutory forms maintained by Returning Officers,
• The data entered in those statutory forms is final,
• The reports are intended to improve transparency and accessibility of election-related data for researchers, institutions and the public.

The Commission said the publication of statistical reports within 72 hours is part of a broader digitisation initiative through ECINET.

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