Advancements in todays technologies have made huge relationship markets in recent years. Today’s competitive world requires to manage customer relationship. Technologies such as data mining, data warehousing and campaign management software have made customer relationship a new area to deal with. Data mining is the process in which variety of techniques and models are used to find the relationships and the patterns related in different types of data, so that we can make accurate decisions using this patterns. The whole system purely depends on the decisions so the decision making process has much more importance in the field of data mining. The involvement of information technology revolution, and particularly in web area the opportunity to make better CRM increases. The system replaces traditional available offline systems. A business might use a data and create its own information to work. This information helps to construct a CRM model to deal with new emerging technologies. Here using previous available data is processed and new future decisions are generated.