The study of Consumers has been always of great interest to marketers and to succeed in the dynamic and rapidly evolving environment, marketers are required to know all that they can about the consumers. During the 21st century, one can see many developments and changes taking place, with industries and firms trying to keep pace with the changes to suit the diverse needs of the people. Market segmentation has been considered as one of the most fundamental concept of modern marketing. In order to sharpen the Market segmentation lifestyle is an important concept but lifestyles may be change due to different demographical factors. This paper studies the relationship between demographical factors and lifestyles of different segments).