Following the release of the IIT Roorkee report, which recommended constructing a 52-million-litre additional tank to repair the Malabar Hill reservoir, residents and activists have raised objections, claiming the report is based on incorrect data provided by the BMC.

The report from IIT Roorkee states that the total usable storage for tanks 1A, 1B, and 1C is 35.5 million litres (ML), while tanks 2A and 2B have a combined storage of 39 ML, bringing the total capacity to 74.5 ML. Citing storage shortages and inflow/outflow patterns, the experts recommended building an additional 52.4 ML tank. However, residents have disputed these figures. A draft prepared by residents and activists indicates that the BMC provided erroneous data to IIT Roorkee to secure a misleading report.