Air pollution is finally being recognised as a major environmental problem in India, and transportation has been identified as a major contributor.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/india-proposes-national-policy-biofuels
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/clean-technica
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/biofuels
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/renewable-energy
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-policy
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution