Hindu society is traditionally divided into numerous jātis or classes, which are usually grouped into the four varṇas – often called ‘castes’ – of:

• Brāhmaṇa – priest
• Kṣatriya – warrior
• Vaśya – merchant or farmer
• Śūdra – labourer.

Relating to ritual purity, castes are hereditary and probably based on occupation. Members of different castes performed particular socio-economic roles and did not mix or eat the same food. People outside the caste system were usually looked down upon.