The area is covered with thick overburden (> 3 m) which got oversaturated and developed pore water pressure within the slope forming material and initiated  downward movement due to loss
of shearing strength. Major cracks and sinking were noticed at S.P.
Report on the preliminary post disaster landslide studies in and around Tawang Town, Tawang District, Arunachal Pradesh by W. S. Rocky and G. Rongmei, Senior Geologist,Engineering Geology Division & S.C. Keshari, Senior Geologist, SU: GSI, Itanagar,  Geo
D.C. & S. P. Bungalows Slide
Construction of stepped retaining wall, extension of existing retaining wall, sealing of cracks, provision of surface drainage system, channelising of the nala through chute drains.
Poor drainage system