Hyderabad's electorate could shrink by nearly 41 per-cent under SIR. The city had 47.36-lakh electors before revision, while 12.49-lakh notices were served. Officials expect exclusions to reduce the final rolls, with Rangareddy also facing a projected decline of at least 35 per-cent. Hyderabad: Hyderabad’s electorate could shrink by around 41 per cent as part of the ongoing Special Intensive Revision (SIR) of electoral rolls in Telangana.