With the rapid growing competition (due to free market economy) among nationalized, foreign and private commercial banks as to how the banks operates its banking operation and how customer service can be made more attractive, the expectation of the customers has immensely increased. Reciprocating the sentiment, commercial/private banks are trying to elevate their traditional banking service to a better standard, to meet the challenging needs, demands. Side by side these banks have now concentrated their attention towards diversification of their products for better performances and existence. For the above circumstances, it has become necessary for Al-Arafah Islami Bank Ltd (AIBL), & Dutch Bangla Bank Ltd.(DBBL) to focus its attention towards the improvement of the customer service. That’s why it is quite justified to make an in-depth study about its operation and evaluate the service provided by this bank and scope for its improvement. The study may help formulating policy regarding the ideas relating to the feelings of the customers and bankers.