MONOCROTOPHOS, A common pesticide, is also popular among some Indian farmers for a grimmer purpose: acutely toxic for humans, yet dirt-cheap, it is the instrument most farmers have chosen to end their lives with. A dubious claim to fame for the pesticide industry, even as its effectiveness in pest eradication is highly questionable.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/death-spray
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/tehelka-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/pesticides
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/acute-toxicity
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-agriculture
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/who
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sri-lanka
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india