While it is believed that Metro, right from conceptualisation to construction stage, is an expensive urban project
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/metro-saved-rs-2000-crore-five-years-study
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/transport
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-transport
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/metro
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-metro-rail-corporation-dmrc
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-road-research-institute-crri
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi