Rockfall hazards pose significant threats to infrastructure and public safety in mountainous terrains, necessitating comprehensive assessment and mitigation strategies. This study presents a comprehensive rockfall hazard analysis along the National Highway-7 (NH-7). Rockfall Hazard Rating System (RHRS) and numerical simulation approach have been applied to evaluate rockfall potential and mitigation strategies. RHRS was applied to categorize the engineered slopes based on their vulnerability, considering parameters such as slope geometry, geo-environmental factors, and traffic exposure. Numerical modeling has been performed using RocFall software to simulate possible rockfall trajectories and quantify several parameters, including bounce height, maximum run-out distance and kinetic energy of falling blocks. Rockfall simulations provided detailed insights into the behavior of falling rocks under varying slope conditions. To optimize, mitigation strategies and site-specific protective barriers have been proposed and evaluated based on simulation outputs. Barrier placement was optimized to maximize energy absorption and prevent rocks from reaching the road. Results indicate that proposed barrier installations can arrest all plausible falling blocks.