Indian Railways (IR) play a vital role in the transportation sector for both passengers and freight. In the Udhampur-Srinagar-Baramulla Rail Link (USBRL) project, a railway formation was to be constructed on a sloping profile with a foundation stratum of filled-up soil of side slope 1 V to 2H. Because of the compound topographical profile of the natural ground, high seismicity, and retention height of approximately 20 m, a combination of reinforced soil systems (RSS) was proposed for the railway formation. The composite RSS comprising flexible facia (vegetative/gabion facia) with a shoring system of ground anchors was designed using the limit equilibrium method. A surcharge slope on the composite structure was strengthened using high-strength flexible geogrid (IS 17373). Because of the challenging natural profile and imposition of sequential loads of different magnitudes, such as dead weight from RSS and surcharge slope, as well as live railway loading, certain degree of settlement was anticipated in the natural subsoil. Stagewise construction was followed at site to accommodate these settlements. To ascertain if the serviceability limits of the deformation were met, the system was examined using FEM, known for its proficiency in solving complex-problems, which involved complicated geometry and boundary conditions. The post-construction settlement below the railway track was computed to a maximum permissible value of 10 mm. This ensured that the deformation limits were not exceeded, thereby ensuring the safety of the railway track. This paper presents the PLAXIS 2D FEM analysis performed for a challenging natural profile with intricate structural geometry considering its performance under working loads.