The switch to dual fuel for vehicles, consisting of hydrogen and CNG, will happen by next year.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/switch-dual-fuel-next-yr
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-standard-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cng
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrogen
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hybrid-electric
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/auto-industry
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ashok-leyland
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bajaj-auto
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mahindra-mahindra
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/maruti-udyog
[14] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tata-motors