The Dafala tribe was living in the hills to the north of present day Lakhimpur district and Sonitpur district.
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For their support and services rendered to Ahom forces in driving out the Mughal invaders, the Koch princes, Chandra Narayan, son of Mahendra Narayan, grandson of Bali Narayan, was installed as tributary ruler of Darrang, and Gandharva Narayan, was installed as the tributary ruler of Beltola.
After this victory, Lachit Borphukan, after obtaining permission from Ahom king Swargadeo Udayaditya Singha, installed Gandharva Narayan as the king of Beltola.