The ongoing construction delays of sewage treatment plants (STPs) in Haryana are significantly impacting efforts to control pollution in the Yamuna River, which is crucial for the water supply to Delhi. The Haryana State Pollution Control Board (HSPCB) has identified 11 major discharge points contributing to this pollution, with the Dhanaura escape drain from the industrial towns of Yamunanagar and Jagadhri being particularly problematic. Currently, untreated effluent continues to flow into the river, with pollution levels alarmingly high, as indicated by a biological oxygen demand (BOD) of 52 mg/L, far above the acceptable range of 1-2 mg/L. The completion of two STPs, designed to treat a combined capacity of 96.5 million liters per day (MLD), is delayed, which is critical for stopping the flow of untreated waste. The HSPCB has initiated measures including field inspections of 2,150 polluting units and plans for drone monitoring to ensure compliance and tackle illegal discharges. This comprehensive approach aims to mitigate the ongoing pollution crisis affecting the Yamuna River.