 <translate> 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: <yor> Báńkì náà wá láti Bank of Calcutta, tí a dá sílẹ̀ ní 1806, nípasẹ̀ Imperial Bank of India, tí ó jẹ́ báńkì oníṣòwò tó dàgbà jùlọ ní agbègbè India. Báńkì Madras kóra jọ pẹ̀lú "báńkì ààrẹ" méjì yòókù ní British India, ìyẹn Bank of Calcutta àti Bank of Bombay, láti dá Imperial Bank of India sílẹ̀, èyí tó wá di Báńkì Ìpínlẹ̀ India ní 1955. Ijọba India gba iṣakoso ti Imperial Bank of India ni ọdun 1955, pẹlu Reserve Bank of India (ile-ifowopamọ ti India) ti o gba ipin 60% kan, ti o sọ orukọ rẹ ni Ile-ifowopamọ Ipinle India. Ní ọdún 2008, ìjọba gba ìpín tí Reserve Bank of India ní.  Ní ìbámu pẹ̀lú àyọkà yìí, kí ni orúkọ àtijọ́ tí wọ́n ń pè ní "State Bank of India"? Ẹ jẹ́ ká yára ronú. Ìṣàn ìmọ̀: 