Technology treatments that allow certain big cars to be cleaner than their smaller compatriots aren’t available here.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/are-big-cars-cleaner-not-yet-india
[2] http://admin.indiaenvironmentportal.org.in/category/author/jacob-koshy
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cars
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/supreme-court
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/oxides-nitrogen-nox
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bharat-stage-iv
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicle-technology-and-fuel
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/auto-technology
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india