Whenever the work marketing is used in our everyday life, what readily comes to a lot of people's mins is that efforts towards selling a tangible product. Marketing is however, all those activities involved in identifying a customer needs/wants and the satisfaction of those needs/wants. If marketing is identifying and satisfying customer needs and wants, then a customer definitely needs and wants certain services which are distinct from tangible product. So many writings exists on the relevance of marketing in the service industry. This study is another attempt to shed lights that marketing concept in service industry is as relevant as in the product industry. The service industry considered here is the Banking industry and a particular establishment is chosen to critically address the relevance or otherwise of marketing concept in influencing customers patronage and also in the realization of banking objectives. In the course of this study a critical look of other works and related literature will be viewed. Marketing of services, how banks learn their marketing approach and the evolution of a new era in banking industry. The researcher makes use of survey method. The population of management of Chartered Bank is estimated at 40 out of which 10 were taken as sample size and conversely customers of the bank were estimated at 100 out of which 20 were chosen as sample size respectively. Other instruments applied in the study are questionnaire, personal interview and observation method. Two hypothesis were tested: HI: That application of the marketing concept influences customer patronage and thereby enhance corporate performance. vi HO: That application of the marketing concept does not influence customer patronage and does not enhance corporate performance. Some of the recommendations is that due to high competitive nature in today's banking industry it is worthwhile for individual organization to have not just profit but customer(s) orientation so as to satisfy customer wants which is a core fundamental feature of the marketing concept. Failure to do this will definitely makes the organization lost-out in this survival of the fittest era. The whole staff of the Bank should be integrated into the marketing drive and made to appreciate and understand marketing concept. It should not be left out to the marketing staff whom the other staff feel should be the only ones to be concerned. It should be appreciated that even the door-man has a great role to play in the overall marketing function.