Just as the Tangsa, Khampti, and Singpho communities have historical ties and rights in both Assam and the former Sadiya Frontier Tract, the Assamese communities (Ahom, Moran, Mishing, and Sonowal) should likewise enjoy equal historical recognition and rights in those historical regions.
until british arrival. While the regions of Koch-kamatapur, kokrajhar, Goalpara were under the british since 1757-64 farman, Assam went under the british rule only after 1826, 1838.
Those who migrated only after British rule began cannot generally be considered indigenous to the region, as their migration was primarily driven by economic opportunities. They did not share the region's indigenous languages or cultural traditions.
Once a language receives official status, it gains greater institutional support, recognition, and influence in administration, education, and public life.