The 6th Schedule of the Indian Constitution is related to the administration of Tribal areas of -
1
Assam, Arunachal Pradesh, Tripura & Mizoram
2
Assam, Tripura, Nagaland & Mizoram
3
Assam, Nagaland, Meghalaya & Mizoram
4
Assam, Meghalaya, Tripura & Mizoram