Kalaguru Bishnu Prasad Rabha gathered a few specimen of the Deodhai alphabet from an informant of Dimapur area which was noted for the Kachari reign an remains representing the art and architecture.
In the Ahom Buranji translated by G.C. Boruah it is mentioned that Suhungmung Dihingia Raja after defeating the Kacharis on the banks of the river Dhansiri in 1563 occupied the whole of the Dhansiri valley along with the northern portion of the Kolong river.
Mech tribe is one of the scheduled tribes of India and belong to Kachari group of tribes.