Borphukan

After the Ahom consolidated its power following the Battle of Itakhuli in 1681 region from the Manas river in the west to Kaliabor in the east became its domain with the headquarters at Guwahati.

[2] The Borphukan was also responsible for maintaining diplomatic relationships with the ruling houses in Bengal and Bhutan,[3] and according to protocol any ambassador from these regions had to first report to him.

He also had jurisdiction over the dependent kings of Darrang, Beltola, Rani, Luki, and Dimarua besides the Duaria rajas of the south—Panbari, Barduar, Chhaygaon, Pantan, Boko, Bangaon, Vagai, Bholagaon and Mairapur.

Two finely chiseled and inscribed rectangular blocks of stone have been found in the premises of the Kamrupa Anusandhan Samiti, currently the Assam State Museum.

We learn from the inscriptions that the two gates were known respectively as Bijay-Duar and Jay-Duar were constructed in 1660 Saka (1738) by Tarun Duara Borphukan under the orders of King Siva Singha.