The severity and frequency of landslides are increasing each year, posing a growing concern. Around the world, landslides are becoming more prevalent, with India being one of the most affected countries. According to the Geological Survey of India (GSI), 12.6% of India’s land area is in a hazardous zone that is prone to landslides, resulting in significant loss of life and economy. Himachal Pradesh, a state in northern India characterized by its steep terrain which constitutes 25% of total landslide vulnerable area, often experiences such tragedies yearly due to the tectonic movements, rising trend of monsoonal rainfall and growing population in the region. This region experiences less seismic-induced landslides than rainfall-induced ones, but the long-term effects of both may worsen the situation. Thus, this study is an attempt to analyze slope stability by examining the combined effects of seismic activity and rainfall over a time interval to understand its long-term stability performance. For this, a susceptible area from Kullu region is selected to assess the stability analysis in its prevailing condition. Field surveys, field testing and laboratory tests are conducted to characterize the soil properties and slope profiles. Further, a comparative analysis of the slope with and without the remediation measure is performed to assess the performance of the remediation. Due to the geotechnical characteristics examined for the site and considering Federal Highway Administration (FHWA) recommendations, providing a micropile is considered a suitable remedial measure. The assessment highlights the micropile installation as an effective remedial measure to safeguard the slope, the adjacent National Highway and the uphill Deodhar village.