Banking originated in India in the early 1700s with the establishment of the Bank of Bombay in 1720 and the Bank of Hindustan in 1770. The first 'Presidency bank' was the Bank of Bengal, established in 1806. Over subsequent decades, the Bank of Bombay and Bank of Madras were also established as Presidency banks. In the early 20th century, the Imperial Bank of India was formed through the amalgamation of the Presidency banks. The Reserve Bank of India was established in 1935 to regulate the banking sector. After independence in 1947, the State Bank of India was nationalized. Further nationalization occurred in 1969 with 14 major private banks being taken over by the government.