Heavy rainfall led to toe cutting of river terrace by the flooded river with RBM, also the increase of pore pressure led to the landslide 

An interim report on Preliminary slope stability assessment of recent disaster affected areas of Pithoragarh District, Uttarakhand by A Bishwapriya, Suptg. Geologist, M V Dhakate and P K Gajbaiye, Sr Geologist, M IV, NR,Dehradun (LHZ/NR/UPUK/2013/056)
High risk zone, river course shifted towards the left bank
UK/Pith/Munsyari-Jauljibi/Vil/BE/0034
Chhoribagar village
Dredging of the river and flood protection. Wall/structures all along the affected area
Presence of loose and unconsolidated material, flooding of the river with high current and toe erosion in soil. Also the development of the pore pressure and reduction of the shear strength of the material due to saturation by water percolation, gully er