The four classes in the Rig Vedic **** are following.**
1. Brahmanas— They were educated priests and scholars who performed religious rites and imparted education.
2. Kshatriyas— They were the soldiers and protect the tribe from outside attacks.
3. Vaishyas— They were the farmers, traders and craftsmen.They had to shoulder the entire responsibility of the society.
4. Shudras— They formed the lowest order of society and served the other three groups and did menial jobs.