Key takeaways from Bengal SIR: 9% deletions, 8.5% in limbo, 20% struck off in Mamata seat
The final electoral roll for West Bengal was published on February 28, 2026, after the completion of the Special Intensive Revision (SIR) exercise — the most extensive revision since Independence.
Over 61 lakh names were deleted (struck off) from the voter list, representing approximately 9% of the previous electorate of 7.66 crore.
An additional 60 lakh names remain "in limbo" — placed under judicial adjudication by 530 judicial officers — representing about 8.5% of the previous electorate.
In Chief Minister Mamata Banerjee's constituency of Bhabanipur, over 47,000 names were struck off and more than 14,000 placed under adjudication — the deletions exceed 20% of the constituency's previous registered voters.
The exercise has become politically polarising: TMC alleges mass disenfranchisement of legitimate voters, while BJP defends the SIR as a necessary purge of illegal Bangladeshi immigrants.
Scale and Mechanism of Voter Deletions in SIR
The SIR process involves door-to-door enumeration, cross-checking of identity documents, and referral of suspicious entries for adjudication. Deletions happen through a formal process using prescribed Election Commission forms.
Key Details
- Form 7 is the official mechanism for deleting names from the electoral roll. Any person can file Form 7 to object to another person's inclusion; the Electoral Registration Officer must give the affected person an opportunity to be heard.
- In the Bengal SIR, 58.2 lakh Enumeration Forms were "not received" — meaning enumerators could not contact or confirm the identity of these voters. Categories of non-receipt include: deceased (24.16 lakh), absent (12.20 lakh), shifted (19.88 lakh), already enrolled elsewhere (1.38 lakh), and other reasons (57,604).
- Of the 61 lakh deleted, 5.46 lakh were formally deleted after the draft roll publication; the majority were not carried over from the draft to the final roll.
- "Doubtful" voters (about 60 lakh) had their documents flagged as insufficient or inconsistent, triggering referral to judicial officers. They remain on a supplementary list pending adjudication, and cannot vote in the interim.
The 9% deletion rate and 8.5% limbo rate together represent a potential 17-18% churn in the electorate — unprecedented in scale and with direct implications for the 2026 West Bengal Assembly elections.
ECI's Powers and Judicial Oversight in Contested Cases
When the Election Commission determines that a voter's citizenship or eligibility is genuinely doubtful, it has the authority to refer cases to judicial officers for adjudication. This is an exercise of ECI's quasi-judicial powers under its constitutional mandate.
Key Details
- Article 324(1) gives ECI superintendence over preparation of electoral rolls — this includes authority to question and investigate entries.
- Section 22 of the Representation of the People Act, 1950 empowers Electoral Registration Officers to delete entries that were included by error or fraud.
- The involvement of 530 judicial officers (from WB, Odisha, and Jharkhand) for the Bengal SIR is unprecedented — designed to handle the volume of doubtful cases (60 lakh) within a legally defensible timeframe.
- The Supreme Court directed this process in response to a petition, making the adjudication legally robust against challenges of arbitrary deletion.
- Voters cleared by judicial adjudication are to be included in a supplementary electoral roll.
The sheer scale — 60 lakh cases requiring judicial hearings — tests the limits of the SIR mechanism designed for smaller-volume adjustments, and raises legitimate procedural questions about due process for individual voters.
Political Implications: Border Constituencies and the Matua Factor
The SIR's impact is not geographically uniform — its effects are most pronounced in constituencies along the Bangladesh border and in areas with large Matua community populations.
Key Details
- Border districts in Cooch Behar, North 24 Parganas, South 24 Parganas, and Murshidabad saw sharper deletions than inland constituencies.
- The Matua community — a scheduled caste Hindu community with roots in undivided Bengal (now Bangladesh) — migrated to West Bengal in waves, with significant portions arriving after 1971. Their citizenship status and electoral roll inclusion has been contested.
- The CAA 2019 granted a pathway to citizenship for persecuted non-Muslim minorities from Bangladesh, Pakistan, and Afghanistan who entered India before December 31, 2014 — directly benefiting many Matua families.
- In Bhabanipur (CM Mamata Banerjee's seat), 47,094 names deleted vs. the 58,000-vote margin in the 2021 bypoll — indicating the deletions alone could theoretically alter the outcome if most deleted voters were TMC supporters.
- Post-SIR analysis of border belts and Matua-dominated constituencies shows a significant redrawn electoral map ahead of 2026 polls.
The SIR's political stakes are directly tied to who gets deleted — Bangladeshi illegal immigrants (the stated target) or long-settled Bengali communities caught in document ambiguity. This question will define the 2026 Bengal election narrative.
- Voters deleted from Bengal roll: Over 61 lakh (approximately 9% of previous electorate)
- Voters under adjudication: Approximately 60 lakh (approximately 8.5% of previous electorate)
- Previous electorate: 7.66 crore; New electorate: Approximately 7.04 crore
- Judicial officers deployed: 530 (from West Bengal, Odisha, Jharkhand)
- Bhabanipur constituency: 47,094 names deleted; 14,000+ under adjudication
- Mamata Banerjee's 2021 Bhabanipur bypoll margin: Approximately 58,000 votes
- Categories of non-receipt: Deceased (24.16 lakh), Absent (12.20 lakh), Shifted (19.88 lakh), Already enrolled (1.38 lakh), Other (57,604)
- Constitutional basis: Article 324; statutory basis: Representation of the People Act, 1950 (Sections 21-22)