Four cement plants have been shut down in Chhattisgarh since early this month on alleged violation of air pollution control norms.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/four-cement-plants-shut-down-chhattisgarh
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/business-line-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cement-industry
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chhattisgarh
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/lafarge-india
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution