Varnas are based on the work and purposes being served by every
person. NOT on Birth as is wrongly believed.
1. Brahmins: The Teachers
2. Kshatriyas: The Protectors - Warriors
3. Vaishyas : The Traders - Businessmen
4 Shudras : Menial workers or Labourers
There have been many cses throughout History of change of Varna
based on the work and deeds, e.g. Vishvamitra born of a Kshatriya,
became a renowned Sage - a Brahmin