Siang district

Siang District is the 21st district of Arunachal Pradesh State, India. This district was created by bifurcating West Siang and East Siang districts of Arunachal Pradesh consisting of 32-Rumgong and 35-Pangin Constituencies. The district was inaugurated on 27 November 2015 by Chief Minister Nabam Tuki.
The name of the district is derived from the river Siang which flows through this district. The word siang is surmised to be originated from the Angsi glacier ( "aasi" meaning water in adi dialects. "Si" can mean "this" and the latter being taken from the word Angsi itself ) on the northern side of the Himalayas in Burang County of Tibet as the Yarlung-Tsangpo River, is the main tributary of Brahmaputra drainage. 
It is predominantly inhabited by the Adi tribe of Arunachal Pradesh.
Location.
Geographically, Siang District is located almost in the centre of the Siang belt of Arunachal Pradesh. Boleng is about 100 km from Pasighat,45 km from Along and 22 km from Pangin
History.
The creation of Siang district was approved by the Arunachal Pradesh government of Nabam Tuki on 21 March 2013. Eighteen months later the Pangin town was announced as the temporary headquarters of the district, amid claims that Boleng town had been promised the role.
Speaking in Pangin, Siang district was declared to be the 21st district of Arunachal Pradesh by Nabam Tuki on 27 November 2015. The new district was created to make the administration closer to the public. Funding was promised at that time for the construction of a district secretariat at Peram in Pangin, other offices in Pangin, also a small stadium, for school, hospital, housing, bridge, and road construction and other developments.
Languages.
Adi, a Sino-Tibetan language, is the language spoken by the people of this district.
Administration.
The main administrative centres which falls under the district are Additional Deputy Commissioner (ADCs) Rumgong, Kaying. Presently, it has 9 Zilla Parishad members i.e.: Jomlo Mobuk, Rumgong, Kaying, Payum, Boleng, Riga, Rebo-Perging, Pangin, and Kebang.
Divisions.
The district has 4 Sub-Divisions
Assembly constituencies.
There are 2 Arunachal Pradesh Legislative Assembly constituencies located in this district:
External links.
4 .Boleng HQ of Siang District