ECI had directed to use eco-friendly campaign material during the election and there was no need for PVC flex boards and other such non-bio-degradable materials for the campaign in the state
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/kerala-hc-steer-clear-pvc-flexes-and-hoardings
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/new-indian-express-kochi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kerala
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/plastics
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biodegradable-waste
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/high-court
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environmental-security
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment