The social structure of ancient India was organized by the caste system into four main social classes known as varnas.
The social structure of ancient India was based on the caste system. This system organized society into four main social classes called varnas: priests (brahmins), warriors (kshatriyas), craftsmen and merchants, and the servant class. Over time, this system evolved into Brahmanism, the early stage of Hinduism.
https://brainly.com/question/6359285