Blocks with a tree canopy of less than 10 per cent of the area may not need any clearance
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/centre-mulls-over-relaxed-mining-clearance-norms
[2] http://admin.indiaenvironmentportal.org.in/category/author/vikas-dhoot
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/minerals
[6] http://admin.indiaenvironmentportal.org.in/thesaurus/forest-clearance
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-environment-and-forests-moef
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-mines