The combined affect of high slope angle, loose of toe support due to road cutting, weak lithology (shale dominated) and high seepage of water from heavy rainfall contributed to this landslide.
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
Though this road section is no more used for commuting between Haflong and Silchar, it is still used by the settlements situated south of Retzawl. Therefore in order to maintain the connectivity, RCC retaining walls and road side drain should be construc
Retzawl6
Old HaflongSilchar road
Toe support for the affected slope through construction of strong RCC retaining wall with sufficient weep holes. Construction of road side drain. Slope easing by benching should be done to reduce the slope angle.
Reduction of strength of the slope forming material on supersaturation due to heavy rain. Extensive cutting of slope for construction of road.