Delhi Jal Board will construct 53 underground reservoirs before the Games: Chief Minister
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/sewer-water-lines-illegal-colonies-2010
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewers
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi