Transporters, who run tourist buses outside Delhi, say that even if they convert to Compressed Natural Gas (CNG) by September 30 the vehicles will be grounded as there is no CNG station outside the
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/where-do-we-get-cng-out-delhi-ask-tour-operators
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/indian-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution