The caste system in india was used for what support

he caste system in India is the paradigmatic ethnographic example of caste. It has origins in ancient India, and was transformed by various ruling elites in medieval, early-modern, and modern India, especially the Mughal Empire and the British Raj. It is today the basis of educational and job reservations in India.

(google)

Social hierarchy, is the right answer.

Explanation:

The emergence of the Caste system in India can be traced back to Rig Veda. The 10th Mandala of Rig Veda gives reference to the Varna or Caste system. The Rig Veda is the main scripture of the Aryans. However, the nature of this system remained flexible throughout the Vedic period but during the Later Vedic period this system became rigid. According to this system, all the castes in India were divided among four Varnas. This system was created to support social hierarchy in the society.