Fuel prices have been on the rise since February 1999, but the increase has been most prevalent since May 2003.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/fuel-management-survival-smartest
[2] http://admin.indiaenvironmentportal.org.in/category/author/howard-simons
[3] http://admin.indiaenvironmentportal.org.in/category/journal/fuel
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/energy-efficiency
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/transport
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/multicorporations
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/statistics
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fuel-pricing