TETHYS HIMALAYA 9 2.2 LANDSLIDE STUDY 9 2.2. 1 EROSION AND MASS MOVEMENT 9 2.2. 2 CLASSIFICATION OF LANDSLIDES 10 2.2. 3 FACTORS AFFECTING LANDSLIDES 13 2.2. 4 LANDSLIDE SUSCEPTIBILITY STUDY 14 2.3 PREVIOUS WORKS 14