The Pune Municipal Corporation (PMC) has secured a budget estimate of Rs 690 crore to revitalise the Mula-Mutha river pollution abatement project. The funds, requested from both the state and Union governments, will be used to complete existing and new works, as well as pending tasks. The project, initially set for completion by January 2022, involves constructing 11 new sewage treatment plants (STPs), installing 113.6 km of sewer lines, and renovating four intermediate pumping stations. These measures aim to boost sewage treatment capacity from 477 million litres per day (MLD) to 873 MLD, addressing the city's needs until 2027. However, previous tenders were cancelled three years ago due to allegations of cost inflation, with the project’s total cost now estimated at Rs 1,236 crore, including Rs 216 crore for operation and maintenance.
Environmentalists have criticised the PMC for delays and emphasised the need to prioritise reducing river pollution over riverfront beautification projects. Sarang Yadvadkar, an environmental advocate, highlighted the necessity of considering population growth when planning the capacity of the STPs to handle increasing domestic sewage volumes. A former water resources department secretary noted that higher sewage treatment would increase the amount of treated water available for irrigation, aligning with the agreement that PMC would return 6 TMC of treated water back into the channel from the allocated 11.4 TMC of potable water. Groundwork for the project, approved in 2015-16, only began in 2022, following its inauguration by the Prime Minister.