The Correct Answer is d,c,a,b. Explanation & Key Takeaways: • The Correct sequence is IFCI (1948),ICICI(1955),IDBI(1964),IIBI(1971). Important Notes: IDBI • IDBI (Industrial Development Bank of India) Bank was established in 1964 by an Act of Parliament as a wholly owned subsidiary of the Reserve Bank of India (RBI). • It was established as a specialised development financial institution (DFI) – on the lines of NABARD, NHB and SIDBI – to provide credit and other financial facilities for the development of Indian industry. • In 1976, the ownership of IDBI was transferred to the Government of India. • In 2004 it was converted into a commercial bank when RBI incorporated IDBI as a 'scheduled bank' under the RBI Act, 1934. Industrial Investment Bank of India, IIBI • The Industrial Investment Bank of India was a government of India-owned financial investment institution that operated from its inception in 1971 until it was closed down by the Indian government in 2012. • It was a type of development bank with the aim of rehabilitating sick industrial companies in India. ICICI • ICICI was formed in 1955 as a joint-venture of the World Bank, India's public-sector banks and public-sector insurance companies to provide project financing to Indian industry. • The bank was founded as the Industrial Credit and Investment Corporation of India Bank, before it changed its name to ICICI Bank. • The parent company was later merged with the bank. IFCI • IFCI, previously Industrial Finance Corporation of India, is a Non-Banking Finance Company in the public sector. • Established in 1948 as a statutory corporation, IFCI is currently a company listed on BSE and NSE. • IFCI has seven subsidiaries and one associat