There is growing interest in using rail transit
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/private-sector-participation-urban-rail-getting-structure-right
[2] http://admin.indiaenvironmentportal.org.in/category/author/cledan-mandri-perrott
[3] http://admin.indiaenvironmentportal.org.in/category/author/iain-menzies
[4] http://admin.indiaenvironmentportal.org.in/category/publisher/public-private-infrastructure-advisory-facility-ppiaf
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/transport
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urban-transport
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rail-transport
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/metro
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/light-rail-transit
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/private-sector
[11] http://admin.indiaenvironmentportal.org.in/category/place-publication/washington-dc