Ramji D Poddar is enrolled in class B.com 3 year (Applied) and the subject is Principles of Management. The document discusses market segmentation, which is dividing the market into smaller segments based on factors like location, demographics, behaviors, and psychographics. This allows companies to better understand customer preferences and target specific groups. The advantages of market segmentation include greater focus, better serving customer needs, product design based on customer insights, market expansion, and efficient use of resources. In conclusion, market segmentation is important for identifying customer groups and developing effective marketing strategies for each segment.