Of the 1,012 water bodies in Delhi, as many as 349 have reportedly dried up and 165 have been encroached upon.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/google-earth-help-revive-water-bodies
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/asian-age-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-development-authority-dda
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/municipal-corporation-delhi
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ngo
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/public-interest-litigation-pil