Links:
[1] http://admin.indiaenvironmentportal.org.in/content/order-supreme-court-india-regarding-non-forest-activities-within-periyar-tiger-reserve
[2] http://www.indiaenvironmentportal.org.in/files/file/Periyar_Tiger-Reserve_SCOrder_13-Sep-2018.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/periyar-np
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tiger-reserves
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/supreme-court
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-empowered-committee-cec
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kerala