Updates

September 29, 2026 BSE Limited National Stock Exchange of India Limited Listing Department Listing Department Phiroze Jeejeebhoy Towers Exchange Plaza, 5th floor Dalal Street Plot No. C/1, G Block Mumbai 400 001 Bandra-Kurla Complex Bandra (East) Mumbai 400 051 Dear Sir/Madam, Subject : : Filing of amendment to the Annual Securities Report filed with Director of Kanto Regional Finance Bureau on September 18, 2026 We refer to the disclosure filed by ICICI Bank Limited (the Bank) on September 18, 2026 on filing of the Annual Securities Report (ASR) with Director of Kanto Regional Finance Bureau in Japan for the fiscal year from April 1, 2025 through March 31, 2026 in accordance with Financial Instruments and Exchange Law of Japan. Please note that, today, at 2:09 p.m. the Bank has filed an amendment to the aforesaid ASR submitted on September 18, 2026. The amendment is available at https://disclosure2.edinet-fsa.go.jp/WZEK0040.aspx?S100Z4FC and the English translation is attached as Annexure. Yours sincerely, For ICICI Bank Limited Vivek Ranjan Leadership Team Encl.: as above. Copy to- (i) New York Stock Exchange (ii) Singapore Stock Exchange (iii) Japan Securities Dealers Association (iv) SIX Swiss Exchange Limited Annexure [Translation] AMENDMENT TO ANNUAL SECURITIES REPORT ICICI Bank Limited (E05975) (This translation of the Amendment to Annual Securities Report has been prepared solely for reference purposes and shall not have any binding force.) (English Translation) [Cover Page] [Document Name] Amendment to Annual Securities Report [Complied Article] Article 24-2, Paragraph 1 of the Financial Instruments and Exchange Law [Filed with] Director of the Kanto Regional Finance Bureau [Date of Filing] September 29, 2026 [Fiscal Year] From April 1, 2025 to March 31, 2026 [Corporate Name] ICICI Bank Limited [Name and Title of Representative] Nilanjan Sinha General Counsel [Location of Registered Office] ICICI Bank Tower, Near Chakli Circle, Old Padra Road, Vadodara 390 007, Gujarat, India [Personal Name or Corporate Name Hironori Shibata, Attorney-at-Law of Attorney-in-Fact] [Address or Location of Attorney- Anderson Mori & Tomotsune in-Fact] Otemachi Park Building 1-1, Otemachi 1-chome Chiyoda-ku, Tokyo [Telephone Number] 03-6775-1039 [Name of Person to Contact with] Satomi Umezu, Attorney-at-Law Itaru Hasegawa, Attorney-at-Law Shogo Toyooka, Attorney-at-Law Yukako Fukumoto, Attorney-at-Law [Place to Contact with] Anderson Mori & Tomotsune Otemachi Park Building 1-1, Otemachi 1-chome Chiyoda-ku, Tokyo [Telephone Number] 03-6775-1247 [Place(s) for Public Inspection] Not applicable 1 [Reason for Filing] In order to amend items requiring amendment in the Annual Securities Report which was filed on September 18, 2026, an Amendment to Annual Securities Report is hereby filed. 2 [Contents of Amendment] The amendments are shown in underline. PART I. CORPORATE INFORMATION VI. FINANCIAL CONDITION <before amendment> <omit> The financial statements of the Bank included in the Securities Registration Statements filed in November 2005 were prepared in accordance with U.S. GAAP, but the Bank was allowed to file the financial statements prepared in accordance with Indian GAAP in Form 20-F from the year ended March 31, 2006. As a result, the consolidated financial statements prepared under Indian GAAP with net income and stockholders’ equity reconciled to U.S. GAAP are included in the Annual Securities Report pursuant to the provision under item 1 of Article 328 of the Regulations Regarding Terminology, Format and Method of Preparation of Financial Statements, etc. (Ministry of Finance Ordinance No. 59 of 1963). <omit> <after amendment> <omit> The financial statements of the Bank included in the Securities Registration Statements filed in November 2005 were prepared in accordance with U.S. GAAP, but the Bank was allowed to file the financial statements prepared in accordance with Indian GAAP in Form 20-F from the year ended March 31, 2006. As a result, the consolidated financial statements prepared under Indian GAAP with net income and stockholders’ equity reconciled to U.S. GAAP are included in the Annual Securities Report pursuant to the provision under item 2 of Article 328 of the Regulations Regarding Terminology, Format and Method of Preparation of Financial Statements, etc. (Ministry of Finance Ordinance No. 59 of 1963). <omit>