In Bengaluru, BBMP officials have reported that the sewage flow into the Koramangala stormwater drain has reduced from 120 million litres per day (MLD) to around 8 MLD due to the implementation of the K-100 Urban Waterway Project. Despite this claim, local residents and commercial establishments adjacent to the drain assert that the foul odor from the water has not diminished, and sewage-contaminated water continues to flow. The Koramangala Rajakaluve (K-100) project, with a budget of Rs 175 crore allocated by the government, aims to revamp the drain infrastructure along a 9.2-km stretch from KR Market to Bellandur Lake, with an anticipated completion date by the end of 2024. In efforts to prevent sewage from entering the Koramangala Rajakaluve, a 5 MLD capacity sewage treatment plant has been established at Kumbaragundi near Kalasipalya to purify the sewage before releasing it into the stormwater drain. Additionally, BBMP has installed concrete rings and plants along the rajakaluve near Shantinagar to absorb and naturally purify the water. BWSSB is also constructing a sewage treatment plant near Shantinagar, expected to be operational by the year's end to halt sewage inflow into the rajakaluve. BBMP officials highlight completion of various project aspects, including retaining walls, ground-level bridges, decorative lighting, landscaping, granite installation, pedestrian walkways, and grills, as well as service road construction and pipeline installations to prevent rainwater from mixing with the drain water. The project, initiated by BBMP in 2021, aims to comprehensively tackle sewage flow into the Koramangala Rajakaluve.To complete it by 2023, but it missed several deadlines afterward.