Black cotton soil poses significant challenges for infrastructure development due to its swelling, shrinkage, compressibility, and low bearing capacity, often leading to cracks and uneven settlement. Stabilization of such soils is essential for rural road construction, where conventional methods increase costs due to material scarcity. This study explores the use of industrial by-products Rice Husk Ash (RHA), Sugarcane Bagasse Ash (SCBA), and Ground Granulated Blast Furnace Slag (GGBFS) combined