Theophilus, P.K. and Megotsohe Chasie, 2014. Updation of existing landslide inventory of North Eastern Region. GSI, RHQ, NER, Shillong,  Item Code: SER/NER/RHQ/2013/030; Unpub. GSI Report of FS 2013-2014
Gaping cracks of 1-5 cm were observed in old retaining wall
Vengthar
Tlangnuan, Vengthar
Both nature of rock and nature of shearing are responsible for inherent weak geological condition which has been acted upon by partial toe cutting and rainfall.