The Special Intensive Revision (SIR) was a comprehensive electoral roll cleanup conducted by the Election Commission of India (ECI) ahead of the ongoing 2026 West Bengal Assembly elections. Moving beyond standard revisions, the exercise utilized house-to-house enumeration to verify voters and eliminate duplicate, deceased, shifted, and ineligible entries.
Concluded prior to the start of polling in April 2026, the SIR resulted in the unprecedented deletion of approximately 9.1 million names. Following Supreme Court directives, appellate tribunals were established for those whose names were removed. However, despite over 2.7 million individuals filing appeals contesting their deletion, a remarkably low number of names, reportedly around 139, were successfully restored to the electoral rolls before voting commenced.
Following this massive contraction of the registered voter base, the first phase of the 2026 elections recorded a historic, all-time high voter turnout of over 91.9%. This marks the highest percentage of polling in West Bengal since Independence. This unprecedented figure represents a sharp mathematical increase when compared to the state's past Assembly election turnouts, which recorded 82.3% in 2021, 83.0% in 2016, and 84.3% in 2011.