Manufacturers should strengthen their research and development activities to produce vehicles that are cleaner and more fuel efficient.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/death-breath-challenges-bharat-iii-vehicles-likely-be-phased-out-next-year
[2] http://admin.indiaenvironmentportal.org.in/category/author/pritha-chatterjee
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/thesaurus/national-green-tribunal-ngt
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bharat-stage-iv
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/congestion
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicle-technology-and-fuel