Experts say that the present outbreak of water-borne diseases is due to contamination in the drinking water being supplied to the general public.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/unsafe-drinking-water-affecting-public-health
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/himalayan-times-nepal
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drinking-water
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health-effects
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/waterborne-diseases
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nepal
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cholera
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/south-asia