Vehicle population in India rose from 2 crore in 1991 to about 10 crore in 2007 and by 2016, the number is expected to rise by whopping 4 times. Presently, the contribution of automotive sector to country's GDP growth is 5%, while by 2016, it is envisaged to be 10%. It has also been predicted that by, 2016, India will-emerge as 7th largest Car manufacturer, 2nd largest two-wheeler manufacturer and the largest three-wheeler & tractor manufacturer in the world.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/pollution-reduction-pcras-good-driving-habits
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fuel-standards
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/emissions-trading