The Delhi Jal Board's Interceptor Sewage Project (ISP), initiated in 2006 with an investment of ₹2,454 crore (approximately $300 million USD), has fallen short of its goals according to a recent audit by the Delhi Pollution Control Committee (DPCC). The project was intended to intercept and treat sewage before it entered the Yamuna River, targeting three major drains that contribute to 242 million gallons per day (MGD) of untreated sewage. However, the DPCC found that only 142 MGD of sewage was effectively diverted, leaving 117 MGD still flowing untreated into the river. Inspections revealed that out of 109 interceptor points, only 56 were functional, with many points either overflowing or untapped. The report criticized the DJB for inadequate monitoring, noting that only 12 flow meters were installed, and many were non-operational. Activists have pointed to planning failures and delays, with the project originally expected to be completed by 2016. This raises concerns about the ongoing pollution of the Yamuna, which has been a critical issue since the Supreme Court's intervention in 1994.