State Bank of India (SBI) is an Indian multinational public sector bank and financial services statutory body headquartered in Mumbai, Maharashtra. It is the 47th largest bank in the world by total assets and ranked 221st in the Fortune Global 500 list of the world's biggest corporations of 2020, being the only Indian bank on the list.^[11] It is a public sector bank and the largest bank in India^[12] with a 23% market share by assets and a 25% share of the total loan and deposits market.^[13] It is also the tenth largest employer in India with nearly 250,000 employees.^[14][15][16] In 2023, the company’s seat in Forbes Global 2000 was 77.^[17]

On 14 September 2022, State Bank of India became the third lender (after HDFC Bank and ICICI Bank) and the seventh Indian company to cross the ₹5 trillion market capitalization on the Indian stock exchanges for the first time.^[18] The largest public lender in the country reached a milestone in April 2024, when its market capitalization surpassed ₹7 trillion, making it the second public sector undertaking (PSU) to do so, after Life Insurance Corporation of India.^[19] The Reserve Bank of India (RBI) has identified SBI, HDFC Bank, and ICICI Bank as Domestic Systemically Important Banks (D-SIBs), which are often referred to as banks that are “too big to fail”.^[20][21]

The bank descends from the Bank of Calcutta, founded in 1806 via the Imperial Bank of India, making it the oldest commercial bank in the Indian subcontinent. The Bank of Madras merged into the other two presidency banks in British India, the Bank of Calcutta and the Bank of Bombay, to form the Imperial Bank of India, which in turn became the State Bank of India on July 1, 1955.^[22] Overall the bank has been formed from the merger and acquisition of more than twenty banks over the course of its 200-year history.^[23][24] The Government of India took control of the Imperial Bank of India in 1955, with Reserve Bank of India (India's central bank) taking a 60% stake, renaming it State Bank of India.

On 16 August 2022, in an attempt to facilitate and support India's start-ups,