The rapid development of any county depends upon the growing transportation facilities, especially the construction of good roads. A country like India has a large road network that plays an essential role in the development of the nation. For the construction of good roads, natural resources or traditional stabilizers were used. This paper deals with the use of nontraditional stabilizers for low plastic soil stabilization and states the further application in the design of low volume roads. For this, an experimental investigation was carried out on low plastic soil to enhance the engineering properties with the application of a nontraditional stabilizer (fly ash geopolymer). The feasibility of significant strength enhancement of fly ash geopolymer was observed in terms of unconfined compressive strength (UCS) and California Bering Ratio (CBR) for various curing days (0, to 28 days). Furthermore, the microstructural analysis was carried out via. Scanning Electronic Microscope (SEM) and X-ray diffraction (XRD) to understand the microstructural changes. The application of stabilized low plastic soil is demonstrated in the design of low volume road pavement as per Indian Roads Congress (IRC) SP:72–2015. Low-volume road design with stabilized materials shows a significant reduction in pavement thickness.