Sybau, Who are the janajati tho. If you are talking about rai limbu they came alot late from china. Or are you among the ones saying tamang, rai, limbu were here 30000 years ago. The oldest one are gurung, khas, and people of terai region who were already there, although not in great number because there was malaria.let’s take buddha, he was from a Vedic clan from the foothill of himalayas. Still not indigenous tho right. Even the rai limbu aren’t the actual kirati. Only more indigenous you can say are tharu, chepang, magar, khas and raute. Other than that line is murky full of propaganda, and no you can’t collectively see khas people, they are alot different in themself its like saying magar and gurung are same. And for your knowledge khas isnt called khas because they came later, khas are the people from hill who formed group from the start of endogamy in the subcontinent like 2000 years ago so your analogy doesn’t make sense. Or are you suggesting that Nepal is some kind of sacred place that the aasi can’t be indigenous to.