The Kamata Kingdom (pron: ˈkʌmətɑ) emerged in western Kamarupa probably when Sandhya, a ruler of Kamarupanagara, moved his capital west to Kamatapur sometime after 1257 CE.

Though Hussain Shah developed extensive administrative structures, he lost political control to a confederation of Baro-Bhuyan within a few years.

Durlabhnarayan assumed power Kamrup, Goalpara, Jalpaiguri, Koch Bihar, along with the capital Kamatapur, while Dharmanarayan retained Rangpur and Mymensingh.

[11][12] As part of the settlement in about 1330, Durlabhnarayan received from Dharmanarayan the custody of fourteen families of Brahmans and Kayasthas, one among whom was Candivara, the great-great-grandfather of Sankardev.

[13] The court poets of Durlabhnarayan (Hema Saraswati and Harivara Vipra) and Indranarayan produced literary works that are considered to be the first examples of Early Assamese.

[15] The Khen dynasty,[16] of Kheng-Bhutanese affiliation,[17] replaced the weak rulers of Kamata kingdom following Arimatta in the middle of the 15th century.

[18] This followed a long siege that likely started in 1493 soon after Alauddin's ascension and ended in a treacherous win with 24,000 infantry, cavalry and a war flotilla.

[21] He established his son Shahzada Danyal as an administrator and issued coins in his own name as the "conqueror of Kamru and Kamata ...".

Hussein Shah's coins continued to be used till 1518, when the Koch dynasty began consolidating their rule.

[25] In the 1581 Raghudev, the son of Chilarai and the nephew of Nara Narayan, affected a split in the kingdom[26]—Koch Hajo and Koch Bihar.