"There was a significant trade relationship between khengpas and Indians. During winter seasons the people of hill had to migrate to the plains with their goats and sheep. Khengpas were known for their excellence in warfare and statecraft. A Khen chief established a dynasty in Kamata (kamrupa) by virtue of his courage and skill. We have evidence of three kheng kings of this dynasty who ruled Kamrupa (Kamta)." (Dorji 2005:34) Dorji, Lham (2005). "The Historical Anecdotes of Kheng Nobilities". Journal of Bhutan Studies. 13. Thimpu: Centre for Bhutan Studies. ISSN1608-411X.
