The Maharashtra Pollution Control Board (MPCB) is the authority for preventing pollution of water bodies.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/maharashtra-pollution-control-board-frames-norms-eco-friendly-ganeshotsav-fails-implementation
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-nagpur
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maharashtra
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/festival
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ngo
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution-control
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lakes
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality