From Voter Deletions to BJP Win: Inside the Numbers Behind Bengal’s Political Shift

The West Bengal Assembly elections 2026 have not only changed the political landscape but also brought attention to a major issue - record deletion of voters.

As the Bharatiya Janata Party (BJP) ended the 15-year rule of Mamata Banerjee and the All India Trinamool Congress (TMC), questions are being raised about how voter list revisions may have influenced the results.

What Was the SIR Process?

Before the elections, the Election Commission of India carried out a Special Intensive Revision (SIR) of voter rolls. The aim was to remove:

• Duplicate entries
• Names of deceased voters
• Ineligible voters

However, this process turned controversial as over 90 lakh voters were removed from the electoral rolls.

Initially, West Bengal had around 7.66 crore voters. After revisions:

• Over 58.20 lakh names were removed in the draft list
• The number increased to 63.66 lakh in the final list
• After further review, total deletions reached over 90.83 lakh voters

Political Reactions and Allegations

The TMC strongly opposed the SIR process, claiming that the deletions were biased and targeted, potentially affecting its voter base. The party feared that this could impact election outcomes.

On the other hand, the Election Commission maintained that the exercise was necessary to ensure clean and accurate voter lists.

SIR Deletions vs Election Results

An analysis of constituencies shows an interesting pattern between voter deletions and election outcomes:

In 147 constituencies where over 25,000 names were deleted,

• BJP won 95 seats
• TMC won 51 seats
• Congress won 1 seat

In 67 seats with deletions between 15,000-25,000,

• BJP won 47 seats
• TMC won 19 seats
• Congress won 1 seat

In 62 seats with deletions between 5,000-15,000,

• BJP won 50 seats
• Remaining went to TMC

In all 13 seats where deletions were below 5,000,

• BJP won every seat

These numbers suggest that constituencies with higher deletions often saw stronger BJP performance.

District-Level Impact

Murshidabad

Murshidabad saw the highest number of deletions, with over 4.55 lakh voters removed.

• In 2021: TMC won 20 out of 22 seats
• In 2026: TMC dropped to 9 seats

This indicates a major political shift in the district.

North 24 Parganas

In this district, around 3.25 lakh voters were deleted.

• In 2021: TMC won 28 out of 33 seats
• In 2026: TMC reduced to 8 seats

The BJP gained significant ground here.

Malda

Malda recorded over 2.39 lakh deletions.

• In 2021: TMC had 8 out of 12 seats
• In 2026: It dropped to 6 seats, with BJP winning the rest

Changing Voter Patterns

Experts believe that the results also reflect changing voter behaviour:

• Possible split in minority votes
• Growing consolidation of Hindu voters in favour of BJP
• Increased focus on governance and development

These factors, along with voter list changes, may have contributed to the final outcome.

Why the SIR Process Became Controversial

West Bengal shares a long 2,200 km border with Bangladesh, making voter verification a sensitive issue. The SIR process aimed to ensure that only eligible voters remained on the list.

However, the large-scale deletions raised concerns about:

• Transparency
• Fairness
• Impact on electoral democracy

The West Bengal elections 2026 will be remembered not just for the BJP's historic victory but also for the massive voter list revision that preceded it.

While the Election Commission defended the SIR process as necessary, political debates continue over its timing and impact. The link between voter deletions and election results has added another layer to the discussion on electoral fairness in India.