Explanation:

Bank rate in India is determined by Reserve Bank of India (RBI). It is the rate at which RBI gives loan to commercial banks without keeping any collateral.

The RBI also provides short term loans to its clients (keeping collateral) which is called the repo rate.
CRR is a cash reserve ratio ,Under CRR a certain percentage of the total bank deposits has to be kept in the current account with RBI which means banks do not have access to that much amount for any economic activity or commercial activity.
Statutory liquidity ratio (SLR) is the Indian government term for reserve requirement that the commercial banks in India require to maintain in the form of gold, government approved securities before providing credit to the customers.