Corrigendum to Notice of Annual General Meeting to be held on August 21, 2026

SEC/197/2026 August 14, 2026 BSE Limited, National Stock Exchange of India Limited, 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, Corrigendum to the Notice of 105TH Annual General Meeting of Shareholders of CSB Bank Limited -------------------------------------------------------------------------------------------------------------------- Pursuant to Regulation 34(1) of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015,(“SEBI Listing Regulations”) and in continuation of our letter No. SEC/175/2026 dated 28.07.2026 submitting the Annual Report of CSB Bank Limited ("Bank") for the financial year 2025-26 along with the Notice convening the 105th Annual General Meeting of the Bank, we hereby submit a copy of the Corrigendum to the Notice of the 105th Annual General Meeting dated July 22, 2026. In compliance with the applicable provisions of the Companies Act, 2013, the rules made thereunder, the SEBI Listing Regulations, and the relevant circulars issued by the Ministry of Corporate Affairs ("MCA") and the Securities and Exchange Board of India ("SEBI"), the Corrigendum is being sent through electronic mode only to those members of the Bank whose e- mail addresses are registered with the Registrar to an Issue and Share Transfer Agent/ the Depository Participants, as applicable. This corrigendum to the Notice shall form an integral part of the Notice of Annual General Meeting which has already been circulated to shareholders of the Bank. Accordingly, the Notice of Annual General Meeting shall always be read in conjunction with this corrigendum. All other contents of the Notice of the Annual General Meeting dated 22.07.2026 remain the same. Link for accessing the Notice of Annual QR code for accessing the Notice of Annual General Meeting General Meeting https://csb.bank.in/pdf/notice-105-agm.pdf Kindly take the same on records. Thanking You. For CSB Bank Limited 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 CSB BANK LIMITED Regd. Office: ‘CSB Bhavan’, Post Box No. 502, St. Mary's College Road, Thrissur, Kerala, India. Tel: +91 487-6619260 | Fax: +91 487-2338764 | Website: www.csb.bank.in E-mail: secretarial@csb.bank.in | Corporate Identity Number: L65191KL1920PLC000175 August 14, 2026 Dear Members, This has reference to the Notice of 105th Annual General Meeting of the Bank dated July 22, 2026 (“AGM Notice”) to transact the following Special Business among others: Item no. 7: Approval of CSB Bank Employee Stock Option Scheme 2026 (“ESOS 2026” or “Scheme”) as a special resolution. The Bank is issuing this Corrigendum in respect of the following matters forming part of Explanatory Statement annexed to the AGM Notice: It may be noted that in last couple of years, the Bank has granted employee stock options (“Options”) at prevailing market price as on date of grant i.e. no discount has been offered under its existing ESOS Scheme. This has been the practice in spite of having flexibility in determining the exercise price or discount. In view of this practice, the Bank considers that the pricing flexibility in the proposed ESOS 2026 in the present form should be changed to give more clarity and predictability to the stakeholders. Accordingly, the Nomination and Remuneration Committee of the Board (“NRC”) and the Board of Directors of the Bank (“Board”) have respectively considered and approved a corrigendum as regards the revision of the exercise price clause of ESOS 2026 and point (f) of the Explanatory Statement to the special resolution placed at item no. 7 of the AGM Notice as under: CORRIGENDUM Present clause: The Exercise price per Option shall be determined by the Committee which shall not be less than the face value of Share as on date of grant. Proposed clause as per corrigendum: The Exercise price per Option shall be equal to the market price as on date of grant. The Members are requested to read the AGM Notice in conjunction with this Corrigendum. All other contents of the AGM Notice, save and except as modified by this Corrigendum, shall remain unchanged. Link for accessing the Notice of Annual QR code for accessing the Notice of General Meeting Annual General Meeting https://csb.bank.in/pdf/notice-105- agm.pdf A copy of this Corrigendum and the AGM Notice shall be available on the Bank’s website at https://www.csb.bank.in/ and also on the website of National Securities Depository Limited (NSDL), at https://www.evoting.nsdl.com/ and has been communicated to BSE Limited and National Stock Exchange of India Limited, where the shares of the Bank are listed. Thanking You, Yours faithfully, By Order of the Board For CSB Bank Limited Sijo Varghese Company Secretary