UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a -16 OR

15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of October 2026

Commission File Number: 001-15002

ICICI Bank Limited
(Translation of registrant’s name into English)

ICICI Bank Towers,
Bandra-Kurla Complex
Mumbai, India 400 051
(Address of principal executive office)

Indicate by check mark whether the registrant files or will file
annual reports under cover Form 20-F or Form 40-F.

Form 20-F X

Form 40-F

Table of Contents

Items:

Others

OTHER NEWS

Subject: Investor Presentation

IBN

ICICI Bank Limited (the Bank) Report on Form 6-K

Please find attached the investor presentation which will be referred during the earnings call with analysts and investors for the financial results of the Bank for the quarter and six months ended September 30, 2026.

The said presentation is being uploaded on the website of the Bank and can be accessed at https://www.icici.bank.in/about-us/qfr

This is for your information and records.

ICICI Bank Limited

ICICI Bank Towers

Bandra-Kurla Complex

Mumbai 400 051, India.

Tel.: 022- 4008 8900

Email: companysecretary@icici.bank.in

Website: www.icici.bank.in

CIN.: L65190GJ1994PLC021012

Regd. Office: ICICI Bank Tower, Near Chakli Circle,

Old Padra Road, Vadodara 390007. India

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorised.

For ICICI Bank Limited

Date

: October 17, 2026

By:

/s/ Vivek Ranjan

Name :

Vivek Ranjan

Title :

Leadership Team