Adi tribe is actually a major group consisting of several prominent sub-tribal communities of Arunachal Pradesh. The major sub-tribal communities that Adi tribe includes are the Padams, Milangs, Komkars, Minyongs and Pasis. Another group of the Adi tribes comprises sub tribal communities like Gallong and seven other groups. After undergoing several researches, the anthropologists have unanimously made a distinction between the Adi tribes. They have broadly divided the whole of the Adi tribal populace into two sections namely the Bomis and Bogums. The sub tribal communities collectively forming the Adi tribe belong under these two divisions. The Adi tribe constitute major group and inhabit the lower part of Lower Dibang Valley district of the state of Arunachal Pradesh especially Roing and Dambuk areas. The sub tribes forming this major group speak a common dialect, claim a common origin and also perform and celebrate same rituals and festivals.

The Adi tribes trace their origin from Pedong Nane. Pedong Nane was the great grand daughter of Sedi Melo the creator. The Adi tribes are known for their amiable and simple nature. The way they are carrying the job of administering people, depict their democratic nature. They have nicely organized village council, better known as `Kebang`. Adi tribes have a heritage of rich history. Art works are popular amongst Adi tribal communities. Handicrafts of the Adi tribe are best seen in their cane and bamboo works like baskets, trays, haversacks, mats and hats and headgears with artistic designs are produced for domestic use. Women belonging to the Adi tribal group are expert weavers. They weave several things like coats, jackets, bags, skirts, shawls and blankets displaying their abilities in handloom.

The fairs and festivals of the Adi tribe reflect their rich culture and heritage. Their main festivals are Solung, Etor and Aaran. Huge feasts are hosted, offerings are made to deities. Songs and dances are performed in these occasions. Dances performed are in-group lead by a main singer (Miri). Popular dances are the Ponung, Delong, Yakjong and Tapu, which is in-fact, a war dance. Ponung is however most common of all the dances. It is an integral part of the lifestyle of Adi tribes. They have adopted their own style of dancing. `Ponung` is a conventional dance form, widely revered by people of the whole of the Arunachal region. Amongst all the tribal people of all ages from five to eighty, Adi enjoy dancing with a great delight. The villages of Adi tribes are located on the fringes of the mountains and hills.

The Adi tribe is organized into several clans. This tribe is determinant of the social relationship and kinship. Family is the lowest unit of social organization and nuclear in character. In a family of their community, after marriage, eldest sibling separate and establish new residence while the youngest stay back and look after the old parents. Monogamy is the common form of marriage, though polygamy is socially restricted. A marriage arranged by parents and elders is considered ideal and decent though selecting a partner by initiating a love affair is also popular and common. In the Adi community, dead bodies are buried.