India, Oct. 16 -- The Election Commission of India (ECI) has ordered a Special Summary Revision (SSR) of electoral rolls in 17 states and Union territories, with January 1, 2027, as the qualifying date. The exercise comes even as the Commission continues its Special Intensive Revision (SIR) in other parts of the country.

The difference between the two lies in how the electoral roll is prepared. Under SSR, the existing roll is retained and updated while the roll is prepared afresh through a more intensive enumeration exercise under SIR.

SSR builds on the existing electoral roll. The process includes pre-revision checks, such as house-to-house verification by Booth Level Officers (BLOs), identification of eligible voters missing from the ...