In Bengaluru, BBMP officials have reported a significant decrease in sewage flow into the Koramangala stormwater drain, from 120 million litres per day to about 8 MLD, following the implementation of the K-100 Urban Waterway Project. Despite this claim, local residents and businesses near the drain contend that the foul odor persists and sewage-mixed water continues to flow. The Koramangala Rajakaluve (K-100) project, with a budget of Rs 175 crore for drain infrastructure redevelopment, covers a 9.2-kilometer stretch from KR Market to Bellandur Lake, expected to be finished by the end of 2024. Efforts to prevent sewage from entering the drain include a 5 MLD capacity sewage treatment plant at Kumbaragundi and the installation of concrete rings and sewage-absorbing plants along the rajakaluve. Additionally, BWSSB is constructing a sewage treatment plant near Shantinagar, scheduled for completion by year-end, to halt sewage entry. Retaining walls, lighting, landscaping, granite fixtures, pedestrian pathways, and service roads have already been completed, with pipelines to prevent rainwater ingress. BBMP initiated the project in 2021 with the goal of improving water quality and sustainability.In order to finish it by 2023, the project subsequently failed to meet multiple deadlines.