People can approach village panchayat or block development office
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/two-lakh-toilets-be-built-under-sanitation-campaign-salem
[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/salem-d
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/toilets
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/national-rural-employment-guarantee-scheme-nregs
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rural-sanitation
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/gram-sabhas
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sanitation