Over saturation of the insitu soil layer resulted in pore water pressure and due to the heavy weight of the vegetation cover (Trees), flow of the top soil layer occurred along the steep hill slope.
Tep, Y. and Kumar, A. (2018); MacroScale (1:50,000) Landslide Susceptibility Mapping in Toposheet nos. 83C/16 and 83H/1 in  Dima Hasao and Cachar districts in Asam and East Jaintia hills  District in  Meghalaya and West and Central MNipur district in MNi
The landslide is of small dimension however considering the regional importance of this road (NH54); remedial measures suggested should be carried out to arrest further slope failure.
Bandarkhal9
NH54
Toe support for the affected slope through construction of strong RCC retaining wall with sufficient weep holes founded on sound substratum.Construction and proper maintenance of concrete road side drain.
Oversaturation of slope forming material and increase in local pore water pressure during torrential rainfall.Weak lithology comprised of fragmented and highly jointed sandstone and friable shale and siltstone.Weight of the vegetation (Trees)