India, July 29 -- The Election Commission of India (ECI) has released the data from the Special Intensive Revision (SIR) of the electoral roll last conducted in West Bengal in 2022, amid concerns about a fresh such exercise in neighbouring poll-bound Bihar and chief minister Mamata Banerjee's opposition to it. West Bengal is due to go to the polls in 2026.

The 2003 Bihar SIR data was published days before the ECI launched the fresh exercise to revise the electoral roll on June 28 as a reference point for the submission of identification documents. Nearly 60% of the total electorate were not required to submit any documents. They had to verify their details and submit enumeration forms.

The Bengal data was published on Monday under the h...