Completion of Tenure of Mr. Sumit Maheshwari (DIN: 06920646) as Non-Executive Non-Independent Director of the Bank

SEC/212/2026 September 2, 2026 BSE Limited, National Stock Exchange of India Ltd., Corporate Relationship Department, Listing Department, Phiroze Jeejeebhoy Towers, Exchange Plaza, 5th floor, Dalal Street, Bandra-Kurla Complex, Mumbai 400001. Bandra (E), Mumbai 400051. Scrip code: 542867 Symbol: CSBBANK Dear Sir/Madam, Completion of tenure of Mr. Sumit Maheshwari (DIN: 06920646) as Non-Executive Non- Independent Director of the Bank ------------------------------------------------------------------------------------------------------------------------------- Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, this is to inform you that Mr. Sumit Maheshwari (DIN: 06920646) ceases to be the Non-Executive Non-Independent Director of the Bank, with effect from the close of office hours on Wednesday, September 2, 2026, upon completion of the maximum permissible tenure of 8 (eight) years under the Banking Regulation Act, 1949. The Board of Directors of the Bank placed on record their utmost appreciation and gratitude to Mr. Sumit Maheshwari for the valuable contribution made by him during his tenure as a Director of the Bank. The disclosure as required under Regulation 30 of the SEBI Listing Regulations read with SEBI Master Circular No. SEBI/HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, is enclosed as Annexure- I. This intimation is also made available on the website of the Bank at www.csb.bank.in. Kindly take the same on record. 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 Annexure I Disclosure as required under Regulation 30 of the SEBI Listing Regulations read with SEBI Master Circular No. SEBI/HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 Details of events that need to be provided Information of such event (s) 1. Reason for change viz. appointment, Completion of tenure as Director in terms of the resignation, cessation, removal, death or Banking Regulation Act, 1949 otherwise; 2. Date of appointment/cessation (as With effect from the close of office hours on applicable) & term of appointment; Wednesday, September 2, 2026 3. Brief profile (in case of appointment); Not Applicable 4. Disclosure of relationships between Not Applicable directors (in case of appointment of a director). 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