Because of the increasing population and more waste generation, the area required for the disposal of MSW increases. Sanitary Landfill is one of the important method used for the disposal of MSW. The problem faced during new landfill sitting and availability of land is also increased simultaneously. Optimization of landfill sitting shows the prime importance at the environmental, social, and economic levels. The present work is carried out for the Solid Waste Management plant of Nashik Municipal Corporation (MH) India. As the landfill site is on the verge of the closure period, new landfill sitting identification is essential with consideration of all criteria to reduce environmental degradation and improve the standard of living of people nearby vicinity. This study aims to identify potential landfill sites for the year 2021 and the upcoming 25-year period, using a Remote Sensing (RS) - Geographical Information Systems (GIS) with Multi-Criteria Decision Analysis (MCDA). Fifteen parameters were considered while selecting a potential landfill site i.e., geomorphology, hydrogeology, distance to road, drainage, lineament, slope, LULC, distance to water bodies, population density used for AHP-MCDA. Airport, water bodies, road, habitation are used for restriction buffer analysis and aspect, while the wind rose diagram used for final site suitability. The weights of the 9 parameters were obtained from a constructed AHP matrix with a consistency ratio of 0.05557.During the study restricted zones were omitted. Afterward, the threshold limit and selection criteria were used for potential site selection. The study revealed several potential landfill sites and their suitability. Furthermore, the landfill area required for upcoming years is calculated based on the projected population, and the result of the potential landfill sites map shows the effectiveness of the proposed method. The results from this work showed the effectiveness of potential landfill site suitability for Environmental Sustainability in the selection process.