Though rainwater harvesting was made compulsory in 2004, the idea has remained mostly on paper due to huge costs and government
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/how-good-idea-watered-down
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tubewells
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-recharge
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-conservation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-harvesting
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-jal-board-djb