Adding another accomplishment to its portfolio, the Delhi Metro has been ranked second among 18 international metro systems in terms of overall customer satisfaction in an online customer survey.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/delhi-metro-ranks-second-world
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/asian-age-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-metro-rail-corporation-dmrc
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-transport
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/london
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/transport