The correct answer is four. As per its preamble, RBI CANNOT have more than four deputy governors. Current governor of RBI is Shaktikanta Das. ?Reserve Bank of India (RBI):RBI was set up on the basis of the Hilton Young Commission recommendation in April 1935, with the enactment of the RBI Act, 1934. Its first Governor was C. D. Deshmukh. The headquarters of RBI is in Mumbai. Additional InformationQuantitative/General Credit ControlQuantitative credit controls are used to control the volume of credit and indirectly to control the inflationary and deflationary pressures caused by expansion and contraction of credit. The quantitative credit control consists of:Bank Rate:It is also called the rediscount rate. It is the rate, at which the RBI gives finance to commercial banks. Cash Reserve Ratio (CRR):The RBI (Amendment) Bill, 2006, empowers RBI to prescribe CRR“Cash that banks deposits with the RBI without any floor rate or ceiling rate. Statutory Liquidity Ratio (SLR):It is the ratio of a liquid asset, which all commercial banks have to keep in the form of cash, gold and unencumbered approved securities equal to not more than 40% of their total demand and time deposit liabilities (ranges is 25?40%). Repo Rate:It is the rate, at which RBI lends short-term money to the bank against securities. Reverse Repo Rate:It is the rate, at which banks park short-term excess liquidity with the RBI. Open Market Operations (OMOs):Under OMOs, the RBI sells G-securities in the market.