Clarification/Confirmation on news item appearing in "Media/Publication"

SEC/253/2026 October 15, 2026 The Manager, BSE Surveillance Department, BSE Limited, Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai 400001. Scrip code: 542867 Dear Sir/Madam, Sub: Clarification / Confirmation on news item appearing in “Media/ Publication” Ref: BSE E-mail dated October 15, 2026, seeking clarification under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 ("SEBI Listing Regulations”) ------------------------------------------------------------------------------------------------------------------------------------- This has reference to your letter No. L/SURV/ONL/RV/SG/ (2026-2027)/ 110 dated October 15, 2026, seeking clarification on the news item appeared on the website ‘www.livemint.com’ on October 15, 2026, captioned “CSB Bank merger with IDBI Bank likely after Fairfax deal.” In this regard, we would like to categorically state that the Bank is not aware of the background of the said news item or the factual correctness thereof the contents. Further the Bank has no information regarding the matters reported therein and is not involved in any negotiations and discussions, or events, or developments of the nature referred to in the news item. With specific reference to the queries raised by the Exchange, our responses are set out below: a) Whether such negotiations/events were taking place? If so, provide the said information along with the sequence of events in chronological order from the start of negotiations/events till date. Response: The Bank has no information regarding any negotiations, discussions or events referred to in the aforesaid news item. Consequently, the question of providing a sequence of events does not arise. b) Whether you/company are aware of any information that has not been announced to the Exchanges which could explain the aforesaid movement in the trading? Also, you are advised to provide the reasons for not disclosing the above-mentioned information to the Exchange as required under Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Response: No c) In case of regulatory/legal proceedings please provide the information on initiation / outcome of the proceedings. Response: The Bank is not aware of any regulatory/legal proceedings. CSB Bank Limited Regd. Office: CSB Bhavan, St. Mary's College Road, Thrissur – 680020, Kerala, India. Tel: +91 487–2333020 | Fax: +91 487–2338764 | Website: www.csb.bank.in | Email: secretarial@csb.bank.in |CIN: L65191KL1920PLC000175 We assure you that the Bank will continue to promptly notify the exchanges of all events, information, and actions that requires disclosure under the Listing Regulations. We trust the above adequately clarifies the matter. Kindly take the same on records. Thanking You, Yours faithfully, Sijo Varghese Company Secretary CSB Bank Limited Regd. Office: CSB Bhavan, St. Mary's College Road, Thrissur – 680020, Kerala, India. Tel: +91 487–2333020 | Fax: +91 487–2338764 | Website: www.csb.bank.in | Email: secretarial@csb.bank.in |CIN: L65191KL1920PLC000175