6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

FORM 6-K

REPORT OF FOREIGNISSUER PURSUANT TO RULE 13a -16 OR

15d-16 UNDER THESECURITIES EXCHANGE ACT OF 1934

For the month of January 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.

Table of Contents

Items:

1. Other news

OTHER NEWS

Subject:Disclosure under Indian Listing Regulations

IBN

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

The Bank has made the below announcement with the Indian Stock Exchanges:

This is further to the disclosures made by ICICI Bank Limited (the Bank) on July 19, 2025 and November 28, 2025 regarding the proposed acquisition of 100% shareholding in ICICI Prudential Pension Funds Management Company Limited (ICICI PFM) from ICICI Prudential Life Insurance Company Limited to make ICICI PFM a wholly owned subsidiary of the Bank.

Pension Fund Regulatory and Development Authority has, vide its letter dated January 5, 2026 (received by the Bank yesterday at 6:21 p.m.) accorded its approval to the Bank for the above and for the Bank to become a sponsor of ICICI PFM subject to compliance with certain conditions.

Please take the above information 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.