In the 1990s, ICICI transformed its business from a development financial institution offering only project finance to a diversified financial services group, offering a wide variety of products and services, both directly and through a number of subsidiaries and affiliates like ICICI Bank.

[24] In 1999, ICICI become the first Indian company and the first bank or a financial institution from non-Japan Asia to be listed on the NYSE.

[26] During the financial crisis of 2007–2008, customers rushed to ICICI ATMs and branches in some locations due to rumors of bank failure.

The first of its kind, it enabled fully online outward remittance transactions for non-ICICI and ICICI customers alike.

[56] iMobile Pay registered over 10 million sign-ups from non-ICICI Bank account holders by the end of September in 2023.

[50] InstaBIZ offers interoperability, enabling merchants to instantly collect payments using UPI IDs and QR codes.

[62] It is governed by Canada's Bank Act and operates under the supervision of the Office of the Superintendent of Financial Institutions.

[68] Presently the Bank has seven branches[69] in the UK: one each in Birmingham, East Ham, Harrow, London, Manchester, Southall and Wembley.

[70] In 2019, ICICI Bank UK PLC launched an instant account opening facility through its iMobile app.

[71][72] ICICI Bank has operations in Bahrain, Germany, Europe, Hong Kong, and China in addition to the countries mentioned above.

Most of the allegations were that the bank was using goons to recover the credit card payments and that these "recovery agents" exhibited inappropriately and in some cases, inhuman behaviour.

Incidents were reported wherein the defaulters were put to "public shame" by the recovery agents The bank also faced allegations of inappropriate behaviour in recovering its loans.

In some cases, notes were written by the bank's employees asking the defaulters to "sell everything in the house, including family members", were found.

[76] On 14 March 2013 the online magazine Cobrapost released video footage from Operation Red Spider showing high-ranking officials and some employees of ICICI Bank agreeing to convert black money into white, an act in violation of Prevention of Money Laundering Act, 2002.

[82] In January 2019, based on the report of an enquiry panel headed by Justice Srikrishna, the bank board officially terminated her from service.