Idols made up of only natural, bio-degradable, eco-friendly raw materials without any toxic, inorganic raw materials [such as traditional virtuous clay and mud as well as free from Plaster of Paris (PoP), plastic and thermocol (polystyrene)] should be encouraged, allowed and promoted and Idols made up of Plaster of Paris (PoP) shall be banned. As far as possible idol immersion in Rivers/Ponds/Lakes shall be encouraged only at specific designated artificial confined tanks/ponds with liner made with well graded/highly impervious clay or eco synthetic liner, on the banks shall be promoted.
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/revised-guidelines-idol-immersion
[2] http://www.indiaenvironmentportal.org.in/files/file/Revised-Guideline-For-Idol-Immersion.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/publisher/central-pollution-control-board
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[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/central-pollution-control-board-cpcb
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/green-products