Water resource development is fundamental for reaping the multidimensional uses of water. Investment in Water Infrastructure is the most effective way of water resource development and bridging the demand -supply gap of water services. These investments become essentially crucial as the water resources flow across the political borders and threaten the sovereignty of nations. Jammu and Kashmir (J&K) is endowed with enormous water resources yet the transboundary nature puts a restriction on its utility. The history of rivalry and interdependencies among the riparian nations for cross boundary water resources has led to emergence of Indus Water Treaty to solicit cooperation. The treaty explicitly permits the use of west flowing rivers within the limits. As J&K is primarily drained by western rivers, the restrictions create a setback to the overall water resource development. This study critically examines the trans boundary nature of water resources in Jammu and Kashmir and the impact of the Indus Waters Treaty on J&K’s water resource utilization, identifying major investments in hydropower, agricultural, and domestic water infrastructure. Using qualitative analysis of secondary data, including treaty frameworks and project reports, the paper assesses the benefits and limitations of current investments. Findings reveal that the confined availability of water resources still leaves a room for enormous economic progress of the region through water Infrastructure development. Yet a series of compliance measures, financial viability and disproportionate project allocation have hindered optimal water development. Nonetheless, strategic reforms in water governance and investment prioritization offer pathways for sustainable economic growth. The study contributes novel insights into managing transboundary water resources within constrained policy frameworks, emphasizing the need for adaptive, equitable, and sustainable water infrastructure development in politically sensitive regions.