You don't.
The Indian system that places a person in a certain class at birth is the Caste System. The caste system is a social class system.
you were born into your parent's caste system
In India, it is nearly impossible to move up in the strict caste system.
rebirth into a higher caste in the caste system
In a class, you can depending how well you do, improve from one class to another class. In the caste system, one is born in a caste, and cannot move to another caste, except by reincarnation
the aryans
Birth.
No. Hindus cannot move up or down on the caste system.
The Caste system
In many societies that have a caste system, individuals are born into a particular caste based on their family lineage. Caste is often passed down from generation to generation, and it can be difficult to change or move between castes. Social, cultural, and historical factors play a significant role in determining one's caste.
Yes, caste system is the caste discrimination because one caste person cannot marry another caste person. It is forbidden by the Hindu clergymen - the original perpetuators of the Laws of Manu - social jurisprudence. Pleas also see: What is the caste division?
caste system was never banned in India ,it is still there in IndiaCaste membership determined a person's ocupation