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The Brihanmumbai Municipal Corporation (BMC) plans to spend Rs 1,300 crore to set up sewage treatment plants for Oshiwara and Dahisar rivers under the river rejuvenation project. A proposal concerning the same will be presented in the standing committee meeting on Wednesday. A BMC official said that there are several works under the project, such as the retaining walls construction, sewage lines, interceptors to stop sewage from flowing into rivers, approach roads to rivers, stormwater drainage adjacent to roads, and sewage treatment plants. The water will be released into the rivers after treatment in plants. About 90% of the work of the retaining walls and widening of the river has been completed, and 70% of work of approach roads to Dahisar river has also been completed. Now sewage treatment plants work will begin, said a BMC official. In April 2020, the BMC floated a tender for the plants' construction, but they had to increase the deadline for submissions 13 times due to the Covid-19 pandemic. Finally, the corporation got responses from three contractors in February this year, and the expected cost of the project grew 150% from what it was in 2018. The Dahisar river is 13 km long, out of which 4.7 km is outside Sanjay Gandhi National Park (SGNP) and falls under the jurisdiction of BMC. At Dahisar, there will be two sewage treatment plants of 1.5 MLD and 5 MLD. The BMC has proposed to present the contract to SK-SP associates at Rs 376 crore, and construction work is anticipated to finish within two years. Oshiwara will have five sewage treatment plants with a combined capacity of 20.5 MLD. The administration has proposed to present the contract to M/S Shapurji Palanji and Konark at 928 crore. Plant construction is expected to be finished within the next three years. Image Source Also read: Telangana govt to set up 31 sewerage treatment plants at Rs 3,800 cr Also read: Kolkata civic body to develop two water treatment plants at Rs 210 cr