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SIR Voter Roll Research

SIR 2026 · Follow the numbers. Read the evidence.

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Adapted from SIR analysis for India, ImpactMojo. Figures, research methods and interpretations retain their source scope. Roll changes alone do not establish wrongful deletion or a change in an election result. Check the linked official notices for current roll status.

SIR Voter Roll Research Explorer, Bihar 2025

Explorer

    Left off the draft (phase 1)Deleted after the draft (phase 2)On the 2025 roll

    What the lists show

      How many names each booth lost

      Who was left off or deleted

      Women's share of the names left off or deleted, and the religion the booth lists guess from each name left off the draft. A name left unclassified could belong to either group.

      Click a column to sort, a row to open it.

      The figures come from the lists of the Special Intensive Revision (SIR) published by the Chief Electoral Officer, Bihar. The phase 1 lists, of names left off the draft, were published with the draft roll of 1 August 2025, and the phase 2 lists, of names deleted after the draft, before the final roll. Booth figures cover phase 1 only, because only phase 1 was listed by booth. Constituency figures include both phases. The rate per 100 electors is the names left off or deleted divided by the constituency's electors on the 2025 roll. A winning margin is the winner's votes less the runner-up's, from the declared 2025 Assembly results. The NDA here is the BJP, JD(U), LJP(RV), HAM(S) and RLM, and INDIA is the RJD, INC, the Left parties, VIP and IIP. Only totals are published, never names or EPIC numbers. FAQ · Method.

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      Download the figures for Bihar 2025

      Excel workbook, every table What each sheet holds

      CSV: constituencies.csv districts.csv