Banking Services: A bank is an institution, which deals in currency. The bank earns interest through currency transactions. Banks provide many types of services. A bank is an institution, which deals in currency. People and institutions deposit their savings in banks. Bank pays interest on deposits. Bank also gives loan to the needy and takes interest on loan. Deposited money can be withdrawn through ATM, cheque or draft. Banks also provide locker facilitity to its customers. All banks are operated under the guidelines of Reserve Bank of India (RBI).