Identify and explain any one function of Central Bank as indicated in the image given below :

One of the indicated functions of the Central Bank i.e. Reserve Bank of India (RBI) is the Banker's Bank and Supervisor.RBI accepts deposits from commercial banks and also advances loans to them as and when required. It maintains reserves of all commercial banks and utilizes it to settle inter-bank claims. Being the supreme authority of the banking system, it acts as the financier of last recourse to the commercial banks. RBI supervises, regulates and controls the commercial banks.