Intimation of Closure of Trading Window under the SEBI (Prohibition of Insider Trading) Regulations, 2015.

Ref. No.: BBL/SEC/166/2026-27 September 25, 2026 BSE Limited National Stock Exchange of India Limited Dept. of Corporate Services The Listing Department Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1, Block G, Dalal Street, Bandra Kurla Complex, Bandra (E), Mumbai - 400 001 Mumbai - 400 051 BSE Scrip Code: 541153 NSE Symbol: BANDHANBNK Dear Sir/Madam, Sub.: Intimation of Closure of Trading Window under the SEBI (Prohibition of Insider Trading) Regulations, 2015 Pursuant to the provisions of the SEBI (Prohibition of Insider Trading) Regulations, 2015, and the ‘Code of Conduct for Prevention of Insider Trading’ and the ‘Code of Practices and Procedures for Fair Disclosure of Unpublished Price Sensitive Information’ adopted by Bandhan Bank Limited (the ‘Bank’), please be informed that the window for trading in securities of the Bank, for its Designated Persons and their immediate relatives, Auditors and Connected Persons, shall remain closed from October 01, 2026 till the expiry of 48 hours after the declaration of the Unaudited Financial Results of the Bank for the second quarter (’Q2’) ending on September 30, 2026 and that the Trading Window shall re-open thereafter. The date of the Board meeting for consideration and approval of the Unaudited Financial Results of the Bank, for the Q2 ending on September 30, 2026, will be intimated in due course. You are requested to take note of the above. Thank you. Yours faithfully, for Bandhan Bank Limited Indranil Banerjee Company Secretary