Donyi-Polo — Sun-Moon cosmology of the Tani tribes
Donyi-Polo ("Sun-Moon") is the dual-deity creator cosmology of the Tani tribal peoples of Arunachal Pradesh — Adi, Apatani, Galo, Nyishi, and Tagin (combined population ~500,000). Donyi (Sun) is the mother, Polō (Moon) the father. The modern Donyi-Polo movement (founded 1986) is reviving and systematizing the indigenous religion as an alternative to Christianization.
Period 1 — Ancient / Pre-Historic – Tani Origins (pre-500 CE): The Tani peoples maintain indigenous cosmology centering on Donyi (Sun-Mother) and Polo (Moon-Father) as the primordial creator couple. Animal sacrifice and ancestor worship are practiced. Sacred groves (gampu) serve as ritual spaces.
Period 2 — Medieval / Ahom–Mughal Interaction (c. 500–1500 CE): The Ahom kingdom extends suzerainty over parts of Arunachal. Trade and cultural exchange introduce Hindu and Buddhist elements. Some Adi clans adopt Hindu practices. The indigenous Donyi-Polo faith maintains its core structure.
Period 3 — Colonial / British – North-East Frontier (c. 1500–1947): Christian missionaries are active. Some Tani groups are partially converted. British 'Inner Line' policy restricts entry and preserves indigenous cultures.
Period 4 — Modern / Post-Independence – Donyi-Polo Movement (c. 1950–1990): Rapid modernization and missionary activity cause significant Christian conversion (1960s–80s). The Adi community founds the Donyi-Polo Yelhou K Society (1986) as a formal revival. Written scripture (Ginka), formal priesthood (Kebang), and public ceremonies are established.
Period 5 — Contemporary (c. 1990–Present): Donyi-Polo claims ~200,000 adherents. The annual Solung festival (September) is the major celebration. Christian conversion continues — Nyishi people are now majority Christian. The Donyi-Polo movement is crucial for preserving Adi cultural identity.
"Donyi-Polo." ELGODS: Spiritual Encyclopedia of India, Deities, https://elgods.jambudweep.tech/explore/deities/donyi-polo-adi. Accessed October 6, 2026.
