This document provides an overview of the history and operations of State Bank of India. It discusses how SBI originated from three presidency banks (Bank of Bengal, Bank of Bombay, and Bank of Madras) established in the early 19th century in India. These banks amalgamated in 1921 to form the Imperial Bank of India, which later became the State Bank of India. The document outlines SBI's key business areas including national banking, international banking, corporate banking, and treasury operations. It also provides details on SBI's management, shareholding, and the historical business activities of the original presidency banks in India.