A control chart is a statistical tool used to distinguish between variation in a process resulting from common causes and variation resulting from special causes. In this paper, the authors used CC Technique to determine outliers. It presents a graphic display of process stability or instability over time. Every process has variation. Existing papers in data mining mostly focus on finding patterns in large datasets and further using it for organizational decision making. However, finding such exceptions and outliers has not yet received as much attention in the data mining field as some other topics have, such as association rules, classification and clustering.