Which among these is not true about caste?

The correct answer is Option (1) → Caste is not determined by birth

Caste is determined by birth – a child is “born into” the caste of its parents. Caste is never a matter of choice. One can never change one’s caste, leave it, or choose not to join it, although there are instances where a person may be expelled from their caste.

Membership in a caste involves strict rules about marriage. Caste groups are “endogamous”, i.e. marriage is restricted to members of the group.

Caste involves a system consisting of many castes arranged in a hierarchy of rank and status. In theory, every person has a caste, and every caste has a specified place in the hierarchy of all castes. While the hierarchical position of many castes, particularly in the middle ranks, may vary from region to region, there is always a hierarchy.

Castes were traditionally linked to occupations. A person born into a caste could only practice the occupation associated with that caste, so that occupations were hereditary, i.e. passed on from generation to generation. On the other hand, a particular occupation could only be pursued by the caste associated with it – members of other castes could not enter the occupation.