Indian Overseas Bankhas informed BSE that the meeting of the Board of Directors of the Company is scheduled on 26/10/2026 ,inter alia, to consider and approve Notice of Board Meeting for Consideration of Unaudited Financial Results for the Quarter and Half Year Ended September 30, 2026

Ref No. IRC/151/2026-27 17.10.2026 National Stock Exchange of India Ltd., BSE Limited, Exchange Plaza, C-1 Block G, Floor 1, P.J. Towers, Dalal Street, Bandra-Kurla Complex, Bandra (E), Mumbai 400 001 Mumbai – 400 051 BSE SCRIP CODE: 532388 NSE SCRIP CODE: IOB Madam/Sir, Intimation of Board Meeting With reference to Regulation 29(1)(a) & 50(1)(c) of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 and amendments thereon, we advise that a meeting of the Board of Directors of the Bank is scheduled to be held on Monday, 26th October 2026 at Chennai, inter alia to consider and approve the Unaudited (Reviewed) Financial Results of the Bank (Standalone and Consolidated) for the Quarter and Half year ended 30th September 2026. Further, in terms of the SEBI (Prohibition of Insider Trading) Regulations, 2015 and IOB Code of Conduct for Prohibition of Insider Trading and vide our Letter Ref No. IRC/138/2026-27 dated 28th September 2026, the Trading Window for dealing in the securities of Bank which was closed for Designated Persons of the Bank, their immediate relatives and all other insiders from 01st October 2026 shall remain closed till 28th October 2026 (both days inclusive). This is for your information and appropriate dissemination. Yours faithfully, Raghuram Mallela Deputy General Manager/ Company Secretary & Compliance Officer Investor Relations Cell, Central Office, 763, Anna Salai, Chennai 600 002 044 – 7172 9791, 2888 9360 | investor@iob.bank.in