A Decade on, the best way for you to commute in the city would be by public transport.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/delhi-will-need-370-km-brt-more-metro-lines-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/high-capacity-bus
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-transport
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/transport
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/metro
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/congestion-pricing