First improve public transport, suggests LoP Gupta
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/people-favour-return-odd-even-plan-sisodia
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/odd-even-numbered-cars
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-transport
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cars-and-congestion
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution