The debris slide has occurred due to steep slope cut, adverse condition of overburden and drainage dissection on the affected slope. During rainfall the overburden material gets oversaturation leading to increase in pore pressure and loss of cohesion.
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 Hunli 9.66 km along HMH road
Hunli-Metengliang-Hayuliang (HMH) road
1. Provision for lined drainage and culvert at road bench level should be provided for effective drainage and to avoid toe erosion by water. 2. Proper diversion of water flowing from crown portion.  3. Scaling of slope and scar face.
1. Steep slope cut. 2 Adverse conditions of overburden comprising of highly friable and splintery chlorite schist intermixed with soil. 3. Rill erosion 4. Oversaturation of SFM leading to increase in pore pressure and loss of cohesion during rainfall.