Goa might boast of positive socio-economic indicators like high per capita income and literacy rate, but inflow of migrant workers is rapidly altering the state's demographics.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/53000-houses-goa-have-no-toilets
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-goa
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/goa
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/toilets
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanitation
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/open-defecation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drinking-water
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply