This document summarizes a study on the effect of chrome tanning effluent on cohesive soils. The researchers collected chrome tanning effluent from a tannery in India and mixed it with natural clay soil at different percentages to test how the effluent impacts the soil properties. Their results showed that the liquid limit and plastic limit of the clay soil increased as the percentage of tannery effluent added increased. They also tested how adding waste stone powder and lime to the contaminated soil could increase its unconfined compressive strength. The goal of the study was to evaluate how tannery effluent impacts engineering properties of soil and how industrial byproducts can be used to stabilize contaminated soils.