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Banks are the most important part of any country in this modern time and necessity is very important . A modern bank provide valuable service to our country. To attain development there should be a good developed financial system to support not only the economic matters but also the society. So, a modern bank plays a vital role in the sociology economic matters of the country .
 In addition, banks play a role in providing payment and settlement services which are necessary for households, business and other financial institutions to settle day-to-day transactions.As a country becomes more developed, one typically sees the capital markets playing a greater role in supplying financial products and services relative to that supplied by the banks. In many advanced economies, for example, raising business debt through securities rivals or exceeds that provided though the banking system