Market was defined as the place or areas in which buyers and sellers functions. Marketing is a exchange process. The products are matched with markets.A marketers and products are the twin factors on which all marketing process are based nothing happen in our economy, unless and until some body sales nothing. Hence selling is very essential and for selling markets is essential. Market is the aggregate demands for the potential buyers of commodity or services. The process of subdividing market is called as market segmentation.The term segmentation is the use to sub-divide the market or customers of the product in order to capture more sale effectively and efficiently. Even for product line having a similar needs of different need of market segments. "Market segmentation is the subdividing of a market into distinct subsets of customers, he any subset may conceivably be selected as a market target to be reached with a distinct marketing mix''.