The ECI has issued instructions to carry out a Special Intensive Revision in Bihar to weed out ineligible names and ensure all eligible citizens are included in the electoral roll, allowing them to exercise their franchise in the polls slated later this year. "Why is this exercise being suddenly done right now?" TMC's O'Brien asked. "It's a sinister move to bring NRC through the backdoor," alleged the TMC leader.CP{(M) also raised the same doubt.