The primary component of this nature is soil, which satisfies all of our fundamental needs for food, shelter, and clothing. One of the main soil deposits in India are black cotton soils, which have a significant potential for expanding and contracting as an outcome of changes in moisture content. Enhancing the strength of shear, load bearing capacity, and other physical characteristics of soil is done through soil stabilisation. One of today's most urgent environmental issues is plastic pollution. Plastic wastes are typically ignored, and because they don't degrade naturally, they build within the earth's and ocean habitats. Every day, over 26,000 tonnes of plastic waste are produced in India. One of the biggest issues facing the globe today is plastic trash. Dioxins, mercury, and other hazardous chemicals are released into the environment and pose a threat to both plant life and the well-being of individuals and animals. Although there is a lot of environmental pollution-causing plastic trash that might be used as strengthening components, a prospective pozzolanic substance (rice husk ash mixed with lime) has better capabilities for stabilising soils. This paper examines the engineering behaviour of stabilised clayey/silty soil supplemented with discrete, randomly positioned plastic waste fibres by performing various laboratory tests.