Far back in 1985, Hero Honda cd 100 was the first four-stroke bike to take a tentative step in the Indian market. Since then it's going great guns. The product has been rated the second best model behind its new avatar
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/milestone-mileage
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/emissions-trading
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/architecture
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/automobiles
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industry
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india