What's the difference between a caste system and a social system?

Caste System is a closed system of social stratification. A Social System is a possible through education and certain opportunities.

What is the difference between a social class and a caste system?Social mobility between classes is possible through education and certain opportunities. On the other hand, rural areas of India and other agrarian societies use the caste system, a closed system of social stratification in which the population is divided between hereditary groups.