Khalangsha
Khalangsha is remembered as an early seat of power in Cachar, in the Barak valley west of Manipur. One account places it near Rajghat on the Rukni River, a tributary in the Sonai country. The surrounding plain was contested by neighbouring rulers: the Tripura kingdom extended its authority into Cachar, while later Koch power also reached the valley. Rivers and the hills enclosing the plain shaped the setting of these changing kingdoms.