Lack of parking space in the Federal Capital forced people to turn green belts into illegal parking lots.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/green-belts-turned-illegal-parking-lots-encroachment-activities-rise-capital
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/pakistan-observer
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pakistan
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/islamabad
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/land-encroachments
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cars
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/trees
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-asia
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/urbanisation