Enhancing water security is becoming a top priority for governments all over the world. The first step to achieving water security is to measure it. To address this, the partners for this call developed a Water Security Assessment Framework under APN project ARCP2015-07CMY-Babel (Babel et al. 2015). The framework was applied successfully in three countries—India, Thailand, and Vietnam for both city-scale and basin-scale analysis. This proposed project seeks to build on the outcomes of that project. The overall objective of this project is to build the capacities of early-career scientists, researchers, practitioners, and government agencies in Nepal, India and Vietnam in using this framework, especially for city-scale analysis. The project will develop a computer-based tool (using the framework of ARCP2015-07CMY) to help assess the water security at city-scale, and train different stakeholders in the three aforementioned countries in using this tool. City-scale analysis has been chosen because interventions for enhancing water security are taken on the basis of administrative boundaries, and cities form such distinct boundaries. It is expected that this project will serve as an avenue to help the uptake of an important decision support tool to enable the city stakeholders in operationalizing water security.