The figures say it all. As many as 206,000 children under the age of five die due to diarrhoea every year.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/programme-launched-address-diarrhoeal-deaths
[2] http://admin.indiaenvironmentportal.org.in/category/author/bindu-shajan-perappadan
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/diarrhoea
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/children
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/child-health
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-health-and-family-welfare
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/health