Extensive research has been conducted on ash incineration to develop more efficient recycling and waste management. Municipal solid waste incineration (MSWI) has been widely used for its benefits in reducing waste and recovering energy. However, MSWI ash is increasing rapidly, causing harm to human health and the environment. Many of the applications of MSWI ash are still under investigation. The environmental and technical issues have discouraged the reuse of MSWI ash. The application of MSWI ash in the soil covering of an MSW Dump. The MSWI sample was collected from Vilholi Nashik’s landfill site in the present study. Incineration Ash was mixed with black cotton soil at different concentration ranges from 0 to 20% for experimental investigation. The Physical, Chemical, & Geotechnical Properties were assessed for various compositions. Scanning electron microscopy and energy-dispersive X-ray analysis were performed on the incineration ash. This study aims to investigate the effect of waste incineration ash on the engineering properties of soils. However, the sustainable reuse of incineration ash has the least environmental impact in improved landfill design processes, management, and practices for environmental sustainability.