 It was the dominant kingdom in upper Assam till the 16th century in which it expanded from Parshuram Kund in the east to Vishwanath in the west.During the medieval times, the Chutia people were considered to be the most developed group in the northeastern region of India.Most illustrious of the Chutia kings was Gaurinarayan (Ratnadhwajpal), son of Birpal.