he core function of the marketing department is to understand and satisfy consumer need, wants and desire. Consumer behaviour captures all the aspect of purchase, utility and disposal of products and services. In groups and organization are considered within the framework of consumer. Failing to understand consumer behaviour is the recipe for disaster as some companies have found it the hard way. For example, Wal-Mart launched operations in Latin-America with store design replicating that of US markets. However, Latin America consumer differs to US consumer in every aspect. Wal-Mart suffered consequences and failed to create impact.