SIR Phase 2 Explained: BLO visits, required documents, online options & key dates for Indias biggest voter verification drive

India's Special Intensive Revision of electoral rolls commenced today, November 4, 2025, covering 51 crore voters across 12 states and UTs. Booth Level Officers are conducting door-to-door verification until December 4 to update voter details. This politically charged exercise aims for transparency and accuracy ahead of upcoming elections.