The Delhi Jal Board plans to complete laying of sewer lines in all the 350 unauthorised colonies by 2014-15.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/illegal-colonies-delhi-may-get-sewer-lines-2014
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi-jal-board-djb
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanitation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage-treatment-plants-stp