Links:
[1] http://admin.indiaenvironmentportal.org.in/news/7-polluted-rivers-under-ngt-scanner
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/himachal-pradesh
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-green-trbunal-ngt
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biological-oxygen-demand-bod
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/beas
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution