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 March 2025

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.

Table of Contents

Items:

OTHER NEWS

IBN

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

The Bank has made the below announcement to the Indian Stock exchanges:

ICICI Bank Limited (“Bank”) had, vide its disclosure dated December 13, 2024, communicated that the Board of Directors of the Bank had approved a proposal for sale of 19% stake held in ICICI Merchant Services Private Limited (“IMSPL” or “Company”), an associate of the Bank.

The Bank has executed a share purchase agreement with First Data Holding I (Netherlands) B.V., First Data (India) Private Limited (nominee of First Data Holding I (Netherlands) B.V.) and Fiserv Merchant Solutions Private Limited (formerly known as IMSPL), today at 2:16 p.m. in relation to the sale of its entire shareholding of 19% in equity shares of IMSPL. The completion of procedures and transfer of shares would be intimated in due course of time.

We request you to take the same on record.

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.