Production cost of petrol has gone up by 24 paise per litre on an average and that for diesel has risen by 66 paise.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/no-initial-impact-bs-vi-compliance-cost-diesel-petrol-prices
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/financial-express-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diesel
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bharat-stage-vi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicle-technology-and-fuel
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indian-oil-corporation-ioc
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution-control
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution