Attached herewith details about closure of Trading Window. Kindly Acknowledge receipt.

aTW3TT+ i©Rhtg IDBI Bank Limited ddtpa©rqfaq : xrW3r{ rTaI, Regd. Office : IDBI Tower, SWat:it diMm, OnIItS, WTC Complex, CuRe Parade. CIN: L65190MH2004G01148838 M - 400 o05. Mumbai - 400 005 dfhura : (+91 22) 6655 3355 TEL.: (+91 22) 6655 3355 (+91 22) 6655 3405, 3410 (+91 22) 6655 3405, 3410 MT$C : www,idbi.bank.In Website : www.idbi.bank.in September 25, 2026 The Manager (Listing) The Manager (Listing) BSE Ltd National Stock Exchange of India Ltd 25th Floor. Phiroze Jeejeebhoy Towers, Exchange Plaza, 5th Floor. DalaI Street, Fort, Plot No.C/1, G Block Mumbai – 400 001 Bandra Kurla Complex, Bandra(E) Mumbai – 400 05 1 Dear Sir/Madam, Notice of Closure of Trading Window In terms of Regulation 30 of the SEBI (LODR) Regulations, 2015, it is hereby advised that in accordance with IDBI Bank's Code of Conduct for Prevention of Insider Trading, the trading window for dealing in the securities of the Bank will remain closed for all Designated Persons of the Bank and their immediate relatives from October 01. 2026 until 48 hours after the disclosure of Un-audited Financial Results for the quarter and half year ending on September 30, 2026. The date of the Board meeting for consideration and approval of the Un-audited Financial Results for the quarter and half year ending on September 30, 2026 will be intimated separately. Kindly acknowledge receipt and take the above intimation on record. Yours faithfully, For IDBI Bank Ltd. Company Secretary