The shallow planar failure occurred due to oversaturation of slope forming material during rainfall which increased pore water pressure and reduced the shear strength of the slope forming material.
Ramesh Guguloth, Neethu Alpho Joseph, 2022, Remote Sensing based Macro-scale (1:50,000) landslide susceptibility mapping in Toposheets 83M/4, 8,12,15,16; 83N/01, 2, 5, 6, 9,13; 92A/03, 4, 6, 7, 11,14,15,16; 92E/02, 3 & 4 covering  parts of Tirap, Changan
NIL
1 Km SE of Negchang
Changlang-Khimioyng road
1. Removal of slided debris material
During heavy rainfall, the slope forming material got oversaturated which increased in pore water pressure and reduced the shear strength of the slope forming material.