 
<translate> Banklọ akụ ahụ sitere na Bank of Calcutta, nke hiwere na 1806, site na Imperial Bank of India, na-eme ka ọ bụrụ ụlọ akụ azụmaahịa kacha ochie na mpaghara India. Bank nke Madras jikọtara ya na "ụlọ akụ ndị isi ala" abụọ ndị ọzọ na British India, Bank nke Calcutta na Bank nke Bombay, iji mepụta Imperial Bank of India, nke n'aka nke ya ghọrọ Bank of India na 1955. Gọọmentị nke India weghaara njikwa nke Imperial Bank of India na 1955, ebe Reserve Bank of India (ụlọ akụ etiti India) na-ewere 60% òkè, na-akpọ ya State Bank of India. N'afọ 2008, gọọmentị weghaara oke nke ụlọ akụ Reserve Bank of India.  Dabere na nke a, kedu aha ochie nke ụlọ akụ steeti nke India? Ka anyị chee echiche ngwa ngwa. Mmiri nke ịmara: <eng> 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 in 1955. 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 the State Bank of India. In 2008, the government took over the stake held by the Reserve Bank of India.

Based on this passage, what is the old name of state bank of india? Let's think fast. Stream of consciousness: 