The geotechnical issues are consistently enhanced with increasing urban growth and disturbing the natural profiles of soil or rock from different origins at various locations around the globe. Different types of soil also being a major factor on the performance of civil structures built on them or artificial cuttings made on them. Laterite is one of the challenging soils among them which act as a rock during dry and slurry under wet conditions. The roads or buildings built on hilly terrain consisting of Laterite soil are highly vulnerable to damage and become part of land sliding events. Different geotechnical structures (like, Reinforced Earth Wall, Reinforced Earth Slope) are frequently installed in such locations to mitigate landslide events but the performance of non-biodegradable geotextiles depends on strain level, temperature, PH level, chemical environment, and reinforced earth fill with proper quality assurance and maintenance of reinforcement product (like, avoid UV exposure) which make their utilization challenging and costlier. Natural reinforcements can be the best alternative to replace synthetic product applications at site. Natural reinforcements help to reduce rainfall intensity on slope surface, increase the in-plane drainage over the slope surface which reduces the rate of seepage and impregnation of rainwater, and increase the nutrient portion of natural soil after complete degradation which suits vegetation grooming in the long term. The coir geotextile is one of the natural fibers that has a high content of lignin and hemi-cellulous which gives higher tensile strength compared to other natural fibers and it has Hydro-Phylicity properties and survives in saline environments which enhances its performance level. The durability becomes a major issue while dealing with natural geotextile materials. Hence, the paper mainly focuses on long term performance of natural fibers on site-specific applications and makes a comparative study using numerical simulation using SLIDE 2.0, IITPAVE software.