Question

How is manipuris and Nagas , Chinese, Koreans, Thais, are all different from Indians and American ​

Answer 1

hey mate here is your answer

Probably you're from North/South India that's the reason you're curious.Most of us don't look like Chinese (here I mean Han) but yes some northeastern communities share similar looks to southern Han Chinese, Zhuang, Hmong and Tibetans because their descendants mostly migrated from Yunnan/Tibet/Sichuan provinces of China thousands of years ago. But these are very few and mostly are from Arunachal, Nagaland and parts of Assam.

Answer 2

I guess that's because, Chinese, Japanese and all east Asian population along with north east people of India belong to Mongoloid race and we the Indians belong to Australoid race. No idea about the Americans