The tribals agitated under British rule because
→ The powers and functions of tribal chiefs were reduced to keeping their land titles and renting out their lands only.
→ They lost much of their economic and administrative power over their tribes and had to pay tribute to the British.
→ Their method of shifting cultivation was stopped and they had to settle down at fixed places to become peasant cultivators. Besides, they had to give fixed revenue to the state.
→ Their gathering of forest products for use or sale was stopped, as the British declared forests as 'reserved', meaning that the tribals could not either live in the forests or enter them at will or take out forest produce.