The second group of the people are Adis, Akas, Apatanis, Bangnis, Nishis, Mishmis, Mijis, Thongsas etc., who worship Sun and Moon God namely, Donyi-Polo and Abo-Tani, the original ancestors for most of these tribes. Their religious rituals, largely coincide with phases of agricultural cycles. They invoke nature deities and make animal scarifices.

They traditionally practice jhumming or shifting cultivation. Adis and Apatanis extensively practice wet rice cultivation and have a considerable agricultural economy. Apatanis are also famous for their paddy-cum-pisciculture. They are specialised over centuries in harvesting two crops of fish along with each crop of the paddy.

The third group comprises Noctes and Wanchos,adjoining Nagaland in the Tirap District. These are hardy people known for their strictly structured village society in which hereditary village chief still plays a vital role. The Noctes also practise elementary form of Vaishnavism.