Under the Unified Building Bye-Laws (UBBL) for Delhi, an environment clearance is required from the Ministry of Environment and Forest for all the buildings with a built-up area of 20,000 square me
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/green-clearance-must-buildings-under-ubbl
[2] http://admin.indiaenvironmentportal.org.in/category/author/syed-ali-ahmed
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/buildings
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/construction-industry
[6] http://admin.indiaenvironmentportal.org.in/thesaurus/environment-clearance-ec
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-urban-development
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-development-authority-dda
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/habitat-and-urbanisation