NEW DELHI: The Delhi Metro is the second-most unaffordable in the world among Metro systems that charge less than half a US dollar for a trip, says a study by the Centre for Science and Environment
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/delhi-metro-second-most-unaffordable-world-cse
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-metro-rail-corporation-dmrc
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/carbon-dioxide
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/transport
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sunita-narain