tax collection by the Ahoms. Eventually these clashes came to an end with a written agreement. Duars between Sankosh river and Manas river were collectively known as the Eastern Duars, those between Manas river and Barnadi river were collectively known as Kamrup Duars, and those between Barnadi river and Dhansiri river were collectively known as Darrang duar. The duars to the west of Goalpara were called Western Duars. The Duars in the Goalpara region (which was outside the Ahom kingdom) were under Bhutan's control, but the administration of the Duars to east were shared between Bhutan or Tibet and the Ahom kingdom under different mechanisms. The Duars in the Kamrup region followed the posa system in which the Bhutanese were given possession of the duars in lieu of an annual payment; and the those in the Darrang region were alternately controlled by the Bhutanese and the Ahoms in an annual cycle. The Bhutanese control over these regions were via local authorities, not ethnic Bhutanese, who were appointed by Bhutanese provincial governors called Ponlops After the British took control of Ahom kingdom in 1826, they maintained the Ahom-Bhutan arrangement for a while but the payments made in kind and the shared administration were something the colonial administration was unwilling to maintain and annexed the Kamrup and Darrang Duars in 1841 and the Kariapar Duar in 1844; and following the Duar War in 1865 took complete possession of the Duars and removed Bhutanese interest from the Goalpara and western duars for good. The duars associated with the historical regions of Goalpara, Kamrup, and Darrang were then added to these districts. Demand for statehood Along with the other parts of Northeast India, regional aspiration in the region reached a turning point in the 1980s. The isolation of the region, its complex social character, and its backwardness compared to other parts of the country have all resulted in the complicated set of demands ranging from demand for autonomy and opposition to migrants to movements for secession. The region is also the gateway to the North Eastern Region of India, where one of the main students organization, All Bodo Students Union (ABSU), allied with National Democratic Front of Boroland – Progressive (NDFB-P), National Democratic Front of Boroland – D.R. Nabla faction, People's Joint Action Committee for Boroland Movement (PJACBM) which is an amalgamation of over three dozen Bodo organisations and its supporters are demanding from