Chaglagam | |
|---|---|
Village | |
| Coordinates:28°19′05″N96°36′16″E / 28.3180°N 96.6044°E /28.3180; 96.6044 | |
| Country | |
| State | Arunachal Pradesh |
| District | Anjaw |
| Elevation | 1,340 m (4,400 ft) |
| Languages | |
| • Official | English |
| Time zone | UTC+05:30 (IST) |
| ISO 3166 code | IN-AR |
| Vehicle registration | AR |
Chaglagam is a village and the headquarters of an eponymouscircle inAnjaw district inIndia's north-eastern state ofArunachal Pradesh.[1] It is on the bank of the Delei River.
TheChaglagam Circle contains the upper basin of the Delei River, on the borderZayul County of China'sTibet Autonomous Region. It has a population of 1,681 people, distributed in 18 villages, as per the 2011 census.[2] The population consists of primarilyDigaro Mishmi people.

Chaglagam is situated on the bank of theDelei River,[a] which is a substantial tributary of theLohit River. The Delei rises below theGlei Pass[b]on the border with Tibet, and flows through the Chaglagam Circle along with its numerous tributaries (Duren, Kajap, Kazumiyo, Kalangmiyo etc.). It joins the Lohit River nearHayuliang.[6][7]
Hayuliang is the nearest town to Chaglagam. It is also the headquarters of theHayuliang Subdivision, which includes Chaglagam.
The Chaglagam Circle borders theZayul County of the Tibet Autonomous Region of China. The people of Chaglagam traditionally participated in Indo-Tibetan trade between Assam and Zayul, acting as middlemen.[8] They travelled to Zayul via the Glei Pass, which is called Dri La by the Tibetans,[c] leading to the village of Dri[d] in the westernZayul valley.[9]It was said to take 5 days march to Glei Pass fromRima in Tibet and another 20 days to reachSadiya in Assam.[10]Another pass calledHadigra, to the west of Glei Pass, was also used, but less often.[10]
To the northwest of the Chaglagam Circle is an anomalous jut-in of Tibetan territory calledFishtail-II, a relic of inadequate surveying in the 1914McMahon Line map. The region is patrolled by both Indian and Chinese troops and occasional stand-offs are reported.
In August 2013, China'sPeople's Liberation Army troops intruded 20 to 30 km inside the Indian territory and stayed there for 4 days before going back. India'sIndo-Tibetan Border Police (ITBF) patrols the area.[11]
Chaglagam is located on the 2,000-kilometre-long (1,200 mi) proposed Mago-Thingbu toVijaynagarArunachal Pradesh Frontier Highway along theMcMahon Line,[12][13][14][15] alignment map of which can be seenhere andhere.[16]
As per the2011 Census of India, Chaglagam has 192 residents across 29 households. 155 are male, and 37 are female.[1]