Based on the Household Consumer Expenditure Survey data collected by National Statistical Office (NSO) in its 68th round of National Sample Surveys (NSS) conducted in 2011-12, the erstwhile Planning Commission estimated poverty lines and poverty ratios in 2011-12 following the Tendulkar methodology. The poverty lines and poverty ratios, thus estimated, were released through a Press Note issued on 22nd July 2013.
Links:
[1] http://admin.indiaenvironmentportal.org.in/data-statistics/question-raised-lok-sabha-data-families-living-below-poverty-line-11032020p
[2] http://www.indiaenvironmentportal.org.in/files/file/LokSabha-on-data-families-living-below-poverty-line.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/publisher/lok-sabha
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/india
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/poverty
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/planning-commission