Recently undertaken research has revealed that Karachi's water tanker mafia, which generates an estimated Rs49.6 billion annually, siphons off over 272mgd
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/tanker-mafia-behind-karachis-water-woes
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/dawn
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drinking-water-scarcity
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/population
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/karachi