Direction under section 31 A of Air (Prevention & Control of Pollution) Act 1981 Notice there of.
Links:
[1] http://admin.indiaenvironmentportal.org.in/reports-documents/direction-under-section-31-air-prevention-control-pollution-act-1981-notice-there
[2] http://admin.indiaenvironmentportal.org.in/category/publisher/chhattisgarh-environment-conservation-board
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/iron-and-steel-industry-0
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bhilai
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/chhattisgarh
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-act-1981