Of the total 322 village panchayats in the district, all the houses in 61 villages have individual household latrines.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/61-village-panchayats-namakkal-declared-open-defecation-free
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-chennai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/namakkal-d
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/open-defecation
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rural-sanitation
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/toilets
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gram-sabhas
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanitation