Special Intensive Revision (SIR) is a thorough, house-to-house revision of India's electoral rolls carried out by the Election Commission of India (ECI) — deeper than the routine annual summary revision. Booth Level Officers (BLOs) verify existing voter entries and collect enumeration forms, after which a draft electoral roll is published for claims and objections before the final roll is notified. SIR is conducted in specific states or areas as and when notified by the ECI, not everywhere at once — always check the official portal to see the current status and schedule for your constituency, since this changes with each notified revision.
Official website
Election Commission of India
https://voters.eci.gov.in
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Check the official ECI portal (voters.eci.gov.in) or local notices to see whether SIR is currently active in your constituency.
If a Booth Level Officer (BLO) visits, fill out and return the enumeration form with the requested details.
If you aren't visited, or want to check your status yourself, use the ECI's portal to submit your enumeration form online where that option is available.
Once the draft electoral roll is published, check it carefully for your name and details.
If your name is missing, file Form 6 (inclusion); to object to another entry, file Form 7; to correct an error in your own entry, file Form 8 — all within the claims/objections window announced for that revision.
Track your claim/objection and check the final electoral roll once it's published.
Official fees
There is no fee for the enumeration form or for filing Form 6, Form 7 or Form 8 during SIR.
Processing time
Enumeration, draft roll publication, the claims/objections window and final roll publication are all fixed by the ECI for each SIR exercise and published in the official notification — timelines vary by state and revision, so check the current schedule on the portal rather than assuming a fixed duration.
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It's a deeper, more thorough revision of the electoral roll than the routine annual summary revision — involving house-to-house verification by Booth Level Officers and a fresh enumeration, rather than just incremental additions/deletions.