The Supreme Court will hear West Bengal Chief Minister Mamata Banerjee’s petition challenging the ongoing Special Intensive Revision (SIR) of electoral rolls in the state.Banerjee is likely to attend the top court proceedings on Wednesday during the crucial hearing on petitions challenging SIR of electoral rolls in the state.The matter is listed before a Bench of Chief Justice of India Surya Kant, Justice Joymalya Bagchi and Justice Vipul M Pancholi.The Bench will hear petitions, including those filed by Banerjee, Mostari Banu and TMC MPs Derek O’Brien and Dola Sen.Banerjee has alleged that the SIR exercise was being conducted in West Bengal in a hurried and partisan manner.Earlier, she had written to Chief Election Commissioner Gyanesh Kumar complaining that the SIR process violated provisions of the Representation of Peoples Act and the Rules thereunder.She had warned that the SIR in the present form could trigger “mass disenfranchisement” and “strike at the foundations of democracy”.In her January 3 letter to CEC Kumar, Banerjee had accused the poll panel of presiding over an “unplanned, ill-prepared and ad hoc” SIR process marked by “serious irregularities, procedural violations, and administrative lapses”.The TMC MPs have accused the poll panel of issuing informal instructions to the Electoral Officers on WhatsApp.The Supreme Court had on January 12 asked the Election Commission to respond to pleas filed by the two TMC MPs alleging arbitrariness and procedural irregularities on the part of the Election Commission in the ongoing SIR process of electoral rolls in West Bengal.It had issued notice to the poll panel after senior counsel Kapil Sibal, representing the TMC MPs, submitted that very weird procedures were being followed in West Bengal and instructions relating were being issued through social media platforms such as WhatsApp, making BLOs act without any formal orders.The EC has introduced a ‘logical discrepancy’ category of voters, who may be issued notice for a quasi-judicial hearing on their eligibility over errors or anomalies in the voter details, Sibal pointed out.The Bench had asked the poll panel to respond to the petition in a week after the EC Counsel sought two weeks to file its counter affidavit.In his plea, O’Brien alleged that since the inception of the SIR process in West Bengal, the poll panel issued instructions to officers at the ground level through “informal and extra-statutory channels”, such as WhatsApp messages and oral directions conveyed during video conferences, instead of issuing formal written instructions.“The ECI cannot act arbitrarily, capriciously or dehors law, nor can it substitute legally prescribed and set procedures with ad hoc or informal mechanisms,” O’Brien said in an application filed in his pending petition challenging the EC’s order and guidelines on SIR.On January 29, the Supreme Court asked the Election Commission to display the names of those on the “logical discrepancies” list at gram panchayat bhavans and block offices to enable them to submit documents and objections during the ongoing special intensive revision of electoral rolls in various states.After the completion of SIR in Bihar, the second phase of the exercise is underway in nine states — Chhattisgarh, Goa, Gujarat, Kerala, Madhya Pradesh, Rajasthan, Tamil Nadu, Uttar Pradesh and West Bengal and three Union territories – Andaman and Nicobar, Lakshadweep and Puducherry.Passing general directions for the states where SIR is underway, a Bench of Chief Justice of India Surya Kant and Justice Joymalya Bagchi noted that EC notices had been issued for three categories – mapped, unmapped and logical discrepancy.The draft electoral poll for West Bengal was published on December 16, 2025, “which has substantially aggravated the difficulties faced by eligible and bona fide electors, owing to a continuing series of arbitrary and procedurally irregular actions attributable principally to respondent no.1 (EC)”, he submitted.On November 30 last year, the poll panel granted only a limited extension of time in relation to the revision schedule and fixed January 15, 2026, as the last date for submission of claims and objections, he said, seeking a direction to the EC to extend the deadline for submitting claims and objections.The final roll is due to be published on February 14, even though the entire document verification phase has been “thrown into disarray because of the ECI’s procedural nightmare”. Besides several other directions, the application has sought a directive to the EC to ensure that no voter is left out because of errors of “mapping” on its part, he said, seeking a direction to the poll panel to publish the final roll only after the disposal of all claims, objections and hearings.The Bench had on January 29 reserved its verdict on a batch of pleas including the one filed by the Association for Democratic Reforms (ADR) challenging the SIR of electoral rolls in Bihar.