Brahmins were the highest class that typically consisted of priests and those of high academics.
Kshatriya's were typically comprised of warriors and kings and were the second highest class.
Vaishya's were merchant's and landowners and were the third highest class, a common ground middle class.
Sudra's were the commoners, peasants and servants, the hard laborers that worked.
Pariah's or untouchables were the outcasts of the caste system, the street sweepers or the latrine cleaners. They were the lowest of the system and treated as they were called.
Hope this helps!
