The two-storey house Futane built is spread over 2,200 sq feet and cost just Rs 3 lakh, that is Rs 137 per sq foot. A similar sized single storey structure in brick and cement mortar would have cost him Rs 8.8 lakh or Rs 400 per sq foot, three times more costly.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/cheaper-build
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/down-earth
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/habitat-and-urbanisation
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/building-materials
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mud
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/architecture
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/traditional-knowledge