This paper presents the details of the geotechnical study carried out to evaluate the landslide at the Pokhara–Baglung highway at CH 27+00 along with the mitigation measures and the challenges faced during the construction phase. During the geotechnical study stage of this project, a detailed site visit study and two-dimensional Electrical Resistivity Tomography (2D ERT) were conducted. A total of six 2D ERT profiles were investigated throughout the landslide area to capture the subsurface strata and location of the potential slip surface. Geologically, this landslide area along the highway alignment is covered by colluvial or filling soil above the bedrock. The bedrock is exposed on hill slope and valley slope. As per the 2D ERT results, the thickness of colluvial deposit in the landslide region was approximately 7–11 m. The approximate location of the potential slip surface as per the 2D ERT was identified at the interface of the colluvial deposit and bedrock. The main cause of this landslide was the elevated ground water level at the colluvial deposit, due to the improper management of the surface runoff water and insufficient measures for subsurface drainage. A 12 m high reinforced soil wall with gabion facia and concrete pedestal of 2 m high anchored at the bedrock was designed at the downhill of the slope. At the interface of the bedrock at the reinforced soil fill, drainage geo-composite was designed to ensure the proper drainage and to control the flow subsurface water in the reinforced soil fill. The use of the gabion facia was opted as it is porous and helps to dissipate any pore water pressure that gets built in the reinforced soil fill.