It is not uncommon for Indian companies to encounter situations that require ingenious engineering combined with a uniquely Indian approach to problem solving.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/new-technology-clean-fuel-must
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/economic-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/auto-technology
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/euro-iv
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/euro-v
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/automobiles
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/europe