The State Bank of India (SBI) is India’s largest public sector bank and financial services institution. Headquartered in Mumbai, it plays a central role in India’s banking system, serving millions of retail and corporate customers domestically and abroad. Its scale, legacy, and government ownership make it a cornerstone of India’s financial infrastructure. SBI traces its roots to the Bank of Calcutta, established in 1806, which later became the Imperial Bank of India. In 1955, the Government of India nationalized the Imperial Bank, creating the State Bank of India to expand banking access across the nation. The bank subsequently absorbed several regional associate banks, consolidating its national footprint.