Dibya Raj Koirala u may be right but well! i too have done some reading well! what i read was before jastithi malla aka thiti malla was ruling nepal(then kathmandu) there weren't any caste in nepalas well as it surroundings and according to it welle guvaji were there to preform the brahimin's retuls and they couldn't pronounce proper sanskrit so thiti malla called some brahmins from india. well they came and they saw there wasn't any caste system they went to thiti malla and asked to to dismiss them cause there weren't any thing to seperate people. so his dismissed but he called four brahimins i.e 2 bhandari, jha and well i forgot the last one. well! they came and divided the people in 4 groups brahimin chettei, vaisya and sudras. well! guvaju bajhracharya etc belonged to brahimin , pradhan vaidya etc to chettri and so on. and then they marked which people could go up to kitchen of a house and who till living room and whom to chowk abd who weren't allowed to the house. than indo aryan came in sight and then 4 barna went to newar and indo aryan became brahim and chettri now let's see about aryans well! when they came to indians plain in the 5th centuary they didn't had any culture they had god but all were equal. when they came to indian plains they saw the caste system. all they had was wroshipping around the fire. and when they asked for indian princess to marry they got rejected cause they didn't had any caste. so they adopted brahim and chettri seeing the indians. well! that's what i studied i may be wrong. any comments?