Karnataka, India's sixth-largest state by area and home to approximately 67 million people, faces a deepening and regionally asymmetric water crisis. Situated at the confluence of three major river basins — the Krishna, Cauvery, and West-flowing coastal rivers — the state presents a stark internal bifurcation: Kalyana Karnataka's arid northern districts are already locked in a condition of extremely high water stress exceeding 80% withdrawal-to-supply ratios, while the Western Ghats-endowed coastal belt retains relative hydrological abundance. This paper delivers a comprehensive analysis of water stress across Karnataka's 32 administrative districts, examining current conditions (2024 baseline) and projecting trends to 2035 using a Random Forest (RF) forecasting model calibrated on historical hydrological, climatic, and socioeconomic data. Leveraging standardised water stress indices derived from the WRI Aqueduct 3.0 sub-basin framework — measuring ratios of total annual water withdrawals to available renewable supply — the study integrates escalation flags and probabilistic risk scores across all districts. The findings reveal a state in accelerating hydrological distress: six districts in Kalyana Karnataka already endure Extremely High stress levels (above 80%), with Vijayapura recording a critical 94.2%. Bengaluru Urban, India's technology capital, carries the single highest escalation probability in the dataset at 91.2%, driven by the convergence of rapid urbanisation, groundwater depletion, and Cauvery supply constraints. Twelve districts — representing approximately 38% of Karnataka's land area and 52% of its population — are projected to shift to a higher stress category by 2035 under the SSP2-RCP4.5 scenarios.