Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/harish-salves-note-supreme-court-regarding-hearing-trucks-entering-delhi
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/supreme-court-india
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-duty-vehicle
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/supreme-court