A very interesting episode in the history of Nepal is the influence of  hinduism(widely spread by the north indian migrants 'brahmins') in various communities of Nepal : including Newar and others like Gurungs,etc.

So much that the regional communities started their own caste-heirarchy in their own cultures and territories prior to united Nepal.

But even more intersting ...no matter what caste heirarchy Newars may give to themselves,they are collectively mocked as 'Jyaapoos' by the non newars....and the most by the 'brahmins' who believe themselves as the most true owner of their title' Brahmins'.

LOL-crazy hinduism ...way for many to empower themselves on the name of religion :)