SEC or Socio Economic Classification is the division of a total potential market into smaller groups based on Education & Occupation of the Chief Wage Earner (CWE) of the Household. This is a common classification that is used by marketers to describe the Indian population. The SEC classification, created in 1988, was ratified by Market Research Society of India (MRSI). It is used by most media researchers and brand managers to understand the Indian consuming class.