The difference between high caste and low caste is: different grades, different origins and different status.

First, the levels are different.

1. High caste: high caste Brahman, Khrushchev and Veda.

2. Low castes: The lower castes are sudra and Dapu Zhengzhu.

Second, different origins.

1. High caste: High caste is foreign Islamic conquerors, such as Mamluk and Mongul.

2. Low castes: Most of the low castes are conquered aborigines and belong to non-Aryans.

Third, different status.

1. High caste: High caste has a high social status and occupies most social resources.

2. Low caste: Low caste has a low social status and occupies a small part of social resources to serve the high caste.