In 1985, Uday Kotak founded Kotak Capital Management Finance as an investment and financial services company with a loan of ₹30lakh from family and friends.[8] In 1986, Anand Mahindra and his father Harish Mahindra invested ₹1 lakh in the company which was subsequently renamed Kotak Mahindra Finance.[9] The company was initially engaged in bill discounting, along with lease and hire purchase activities.[10]
In the early 1990s, the company started offering car financing and investment banking services and expanded its operations overseas. In 1996, car financing company Kotak Mahindra Primus was incorporated as a 60:40 joint venture between Kotak Mahindra Finance and Ford Credit International.[11] In the same year, Kotak Mahindra Finance hived off its investment banking division into a new company, Kotak Mahindra Capital, started in partnership with Goldman Sachs.[12]
In 1998, Kotak Mahindra Finance started its mutual fund arm called Kotak Mahindra AMC.[13] In 2001, OM Kotak Mahindra Life Insurance was established as a 74:26 joint venture between Kotak Mahindra Finance and Old Mutual.[14]
In 2005, Kotak Mahindra Bank acquired Ford Credit's 40% stake in Kotak Mahindra Primus, making it a wholly-owned subsidiary of the group.[17] Kotak Mahindra Primus was subsequently renamed as Kotak Mahindra Prime.[18] In 2006, Kotak Mahindra Bank bought out Goldman Sachs' 25% stake in Kotak Mahindra Capital for ₹210 crore (US$46.35 million) and 25% in Kotak Securities for ₹123 crore (US$27.15 million), turning both companies into its wholly-owned subsidiaries.[19]
In 2014, Kotak Mahindra Bank announced the acquisition of ING Vysya Bank in a deal valued at ₹15,000 crore (US$2.34 billion). With the merger completed in 2015, Kotak Mahindra Bank had almost 40,000 employees, and the number of branches reached 1,261.[21] After the merger, ING Group, which controlled ING Vysya Bank, obtained a 6.5% stake in Kotak Mahindra Bank.[22]
In 2016, Kotak Mahindra Bank acquired BSS Microfinance for ₹139.2 crore (US$20.72 million).[25]
In March 2017, Kotak Mahindra Bank launched an online savings account called Kotak 811, named after the date Prime Minister Narendra Modi had announced demonetisation in the previous year (8 November), which according to Uday Kotak was "the day that changed India."[26][27] Kotak 811 helped the bank double its number of customers by September 2018.[28]
In April 2017, Kotak Mahindra Bank acquired Old Mutual's 26% stake in Kotak Mahindra Old Mutual Life Insurance for ₹1,292 crore (US$198.4 million), making the life insurance company its wholly-owned subsidiary.[29]
In 2021, Kotak Mahindra Bank sold its 8.57% stake in Airtel Payments Bank to Bharti Enterprises for ₹295 crore (US$39.81 million).[30] In the same year, Kotak Mahindra Group acquired the vehicle financing portfolio of Volkswagen Finance India[31] and passenger vehicle financing portfolio of Ford Credit India.[32] In 2022, it acquired the agriculture and healthcare equipment financing portfolio of DLL India.[33]
In 2023, Kotak Mahindra Bank acquired microfinancier Sonata Finance for ₹537 crore (US$64 million).[34]
In a study by Brand Finance Banking 500 published in February 2014 by Banker magazine, Kotak Mahindra Bank was ranked 245th among the world's top 500 banks with a brand valuation of around US$481 million and brand rating of AA+.[37][38]
In April 2024, the Reserve Bank of India barred Kotak Mahindra Bank from onboarding new customers via mobile banking, online channels, and issuing new credit cards.[40] Existing customers were not affected. The RBI cited deficiencies in the bank's IT systems as the reason for this action.[41]