Banks emphasize on customer satisfaction to survive in the competitive environment of banking sector. Customer satisfaction depends on various factors such as security, cost, convenience etc. Rural masses suffer to avail banking facilities due to poor infrastructure of banks in villages. The inclination of urban customers towards online banking has increased in recent years. Private sector banks deliver banking facilities to customers with the help of advanced technology. The employees of public sector banks have inadequate knowledge about online banking. Banks should increase the number of bank branches in villages. The bank charges of private sector banks are higher than public sector banks. Urban people prefer online banking more than rural people. Urban people can avail banking facilities easily whereas rural people face difficulties to avail banking facilities due to lack of awareness. The study is based on both primary data and secondary data. Primary data has been collected from the state of West Bengal. Secondary data has been collected from journal articles. In this paper, an attempt has been made to analyze various aspects of customer satisfaction in banking sector.