Imbalances in water supply and demand are becoming increasingly apparent. The available surface water is inadequate to meet the current urban population's needs. In Pune City, the distribution of water supply is inequitable, creating additional stress on the existing surface water resources (ACWADAM, 2019; Pune Municipal Corporation, 2022). This research aims to address the groundwater potential to overcome the growing inequality in Pune’s water supply across the Mula-Mutha basin. The city’s expansion and population growth have increased demand, leading to insufficient surface water and pressure on available resources. By mapping Pune’s Groundwater potential, the study evaluates how groundwater can supplement municipal supply. A systematic water management plan, integrating both surface and groundwater resources, is essential to ensure water security for Pune’s rapidly expanding urban center. The GIS-based Fuzzy-TOPSIS multicriteria analysis used in this study assesses multiple factors that affect groundwater potential zones(GWPZ), including runoff, soil, slope, land use, water level, and lithology are used in this study. Results show that 28% of the area has low groundwater potential, 41% moderate, and 31% good potential. The findings highlight critical suburban areas with significant groundwater decline and water scarcity, indicating where targeted management is needed. This analysis is crucial to bridging the gap between supply and demand in the city, and will inform sustainable groundwater management guidelines for the Mula-Mutha sub-basin.