In 380 AD Egarosindur was under the reign of Dobak state. After that this region was reigned by the King of Kamarupa. Another historical analyses prove that in the 8th century Egarosindur was an important river port where Muslim traders exported and imported their product with Rome and Paris. In the 10th century Egarosindur was under the control of Azhaba, a king of Hazradi. Azbaha triumph over this land by defeated King Botong. But after some years Azbaha was beaten by Bebuid Raza and Bebuid Raza was the first popular king of this land. In his time, Egarosindur was reborn again. He built spectacular palaces, forts, big canals, temples etc.