The enumeration phase of the special intensive revision (SIR) of electoral rolls in four states of Odisha, Manipur, Sikkim and Mizoram has begun, under which all eligible electors whose enumeration forms are received by the Electoral Registration Officer (ERO) on or before June 28, will be included in the draft electoral rolls of these states, the Election Commission of India (ECI) informed on Jattvibeday.Electors who are unable to submit their enumeration forms by June 28, can apply through Form 6 along with the prescribed declaration form during the claims and objections period, the poll body informed further.The Election Commission had launched the third phase of SIR in 16 states and three union territories on May 14 in a staggered manner. During the enumeration phase, which began on May 30 for the abovementioned four states, booth-level officers (BLOs) will conduct house-to-house visits to distribute, collect, and verify enumeration forms.The four states involved in the current phase together account for more than 3.67 crore electors. Odisha has the largest electorate with over 3.34 crore voters, supported by 38,123 BLOs and 8,391 BLAs. Mizoram has 8.75 lakh electors, Sikkim 4.71 lakh, and Manipur 20.92 lakh electors.The Election Commission said the SIR was launched to ensure that all eligible citizens are included in the electoral rolls while preventing the inclusion of ineligible persons.According to the EC, every Indian citizen aged 18 years or above on the qualifying date and not otherwise disqualified under law is entitled to be registered as an elector.