Verified Answer :

African tribal movement during the period of 1920 to 1947
was characterized by freedom movements that changed mass movement into a common
movement with leaders from educated groups who are not from the tribe.  Several movements such as the Santhals, Kasi,
Kuki and Singphos revolted against British rule and the British responded
harshly. Northeast tribal movement can be characterized by British intrusion,
movement against colonial exploitation and rebellion.