The Kirat or Kirati or Kiranti or Kirant people are indigenous ethnic groups of the Himalayas (mid-hills) extending eastward from Nepal into India, Burma and beyond.
They migrated to their present locations via Assam, Burma, Tibet and Yunnan in ancient times. Prototype Tibeto-Burmans originated in the Yellow River basin around 10,000 - 30,000 years ago. Broadly speaking, the Kirat people are of Rai, Limbu, Dewan, Sunuwar and other related mongoloid ethnic groups.
Read more about Kirat: Modern Ethnic Groups, Etymology, History, Religion