There has been a history of inter-tribal violence in the area. There are also a number of violent liberation groups. Obviously it is good to check a knowledgable travel agent for local conditions. Becuase of the violence there is a heavy police and paramilitary presence in parts of the district. It is probably unwise to travel in the region without a local guide.
talk
Indigenous languages of the various tribal groups are most common. In the towns, many speak Hindi, Assamese, or English as a second language.