The Administrative set-up is based on a single line administration, which aims at keeping closest co-operation amongst various developmental departments with the administration to keep step together for speedy development of the people and the area.
The entire Lower Subansiri District is dicided into 3(three) Sub-Divisions viz: Ziro, Raga and Yachuli. Ziro Sub-Division comprised of 2(two) circle namely Ziro and Old Ziro. Raga Sub-Division comprised of 3 (three) circles viz. Raga, Kamporijo and Dollungmukh. Yachuli Sub-Division has got 3(three) circles viz. Yachuli, Pistana and Yazali.
The district has 8(eight) circles comprising of 226 villages. The district has been covered by 3 (three) CD Blocks namely Ziro-I, Ziro-II and Tamen- Raga.
The Deputy Commissioner being the over-all In-charge of the district maintains law and order with the help of Administrative Officers and police force. He also look after the developmental activities of the district .The villagers have their own customary administrative system in the forms of traditional village councils. The Assam Frontier (Administration of Justice) Regulations, 1945, authorizes the village councils to settle all civil matters and certain criminal matters falling within their jurisdictions. However, for all matters, the Deputy Commissioner and other adminitrative officers have jrisdiction under the supervision of Assam High Court, who hold the appellate and the the Revision Authority.
The Panchayat Raj system has been introduced in the district with the North East Frontier Agency Panchayat Raj Regulation, 1967.(i)The Panchayat Body exist at the village level. (ii) The Anchal Samiti at the Block / Anchal level, (iii) The Zilla Parishad operates at the District level. The regulation provides for the effective participation of the people in the Administrtive of Arunachal Pradesh through the institutions set-up under the Pachayat Raj Scheme.