ESG Rating.

Ref. No.: BBL/SEC/137/2026-27 August 31, 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.: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – ESG Rating This is to inform that SEBI registered Environmental, Social and Governance (‘ESG’) Rating Provider, viz. ESG Risk Assessments and Insights Limited, vide its email received by Bandhan Bank Limited (‘Bank’) on August 31, 2026, has voluntarily assigned an ESG Score of ’58’ (Rating Category: Adequate) to the Bank, based on publicly available information, as part of their annual ESG assessment process and in accordance with their methodology and rating process framework. You are requested to take note of the above. This disclosure is being simultaneously uploaded on the Bank’s website at www.bandhan.bank.in. Thanking you. Yours faithfully, for Bandhan Bank Limited Indranil Banerjee Company Secretary