NGO Plant and Animals Welfare Society (PAWS-Mumbai) complained to the civic body about unauthorized sewerage and effluents being released into Powai lake.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pollutants-killing-powai-lake%E2%80%99s-biodiversity-says-ngo
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-lucknow
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/powai
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lake-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmentalists
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution