The affected area is comprised of thick section of unconsolidated material. Extensive slope excavation on natural slope  are the major role in this slope failure. In addition development of pore water pressure increase the overburden weight.
Anicia K.S., Arvind Kumar Singh, 2022, Remote Sensing based Macro-scale (1:50,000) landslide susceptibility mapping in TS no. 82 P/12, 15, 16; 91 C/3, 4, 7, 8, 12; 91 D/1, 2, 3, 4, 5, 6, 8, 9 and 10 covering parts of Lower Dibang Valley, Lohit, Anjaw and
NIL
From Khupa/ KVK Anjaw 16.6 kms along NH-13 towards Tezu
NH-13 (Anjaw-Tezu road)
2.Removal of loose material occurring at critical angle.
2.Development of pore water pressure in the slope forming material during heavy rainfall.