The percentage of the population living below the poverty line in India decreased to 22% in 2011-12 from 37% in 2004-05, according to data released by the Planning Commission in July 2013.  This blog presents data on recent poverty estimates and goes on to provide a brief history of poverty estimation in the country. National and state-wise poverty estimates The Planning Commission estimates levels of poverty in the country on the basis of consumer expenditure surveys conducted by the National Sample Survey Office (NSSO) of the Ministry of Statistics and Programme Implementation.

The current methodology for poverty estimation is based on the recommendations of an Expert Group to Review the Methodology for Estimation of Poverty (Tendulkar Committee) established in 2005.  The Committee calculated poverty levels for the year 2004- 05.  Poverty levels for subsequent years were calculated on the basis of the same methodology, after adjusting for the difference in prices due to inflation. Table 1 shows national poverty levels for the last twenty years, using methodology suggested by the Tendulkar Committee.  According to these estimates, poverty declined at an average rate of 0.74 percentage points per year between 1993-94 and 2004-05, and at 2.18 percentage points per year between 2004-05 and 2011-12. Table 1: National poverty estimates (% below poverty line) (1993 - 2012)

Year	Rural	Urban	Total
1993 – 94	50.1	31.8	45.3
2004 – 05	41.8	25.7	37.2
2009 – 10	33.8	20.9	29.8
2011 – 12	25.7	13.7	21.9

Source: Press Note on Poverty Estimates, 2011 – 12, Planning Commission; Report of the Expert Group to Review the Methodology for Estimation of Poverty (2009) Planning Commission; PRS. State-wise data is also released by the NSSO. Table 2 shows state-wise poverty estimates for 2004-05 and 2011-12.  It shows that while there is a decrease in poverty for almost all states, there are wide inter-state disparities in the percentage of poor below the poverty line and the rate at which poverty levels are declining. Table 2: State-wise poverty estimates (% below poverty line) (2004-05, 2011-12)

State	2004-05	2011-12	Decrease
Andhra Pradesh	29.9	9.2	20.7
Arunachal Pradesh	31.1	34.7	-3.6
Assam	34.4	32	2.4
Bihar	54.4	33.7	20.7
Chhattisgarh	49.4	39.9	9.5
Delhi	13.1	9.9	3.2
Goa	25	5.1	19.9
Gujarat	31.8	16.6	15.2
Haryana	24.1	11.2	12.9
Himachal Pradesh	22.9	8.1	14.8
Jammu and Kashmir	13.2	10.4	2.8
Jharkhand	45.3	37	8.3
Karnataka	33.4	20.9	12.5
Kerala	19.7	7.1	12.6
Madhya Pradesh	48.6	31.7	16.9
Maharashtra	38.1	17.4	20.7
Manipur	38	36.9	1.1
Meghalaya	16.1	11.9	4.2
Mizoram	15.3	20.4	-5.1
Nagaland	9	18.9	-9.9
Odisha	57.2	32.6	24.6
Puducherry	14.1	9.7	4.4
Punjab	20.9	8.3	12.6
Rajasthan	34.4	14.7	19.7
Sikkim	31.1	8.2	22.9
Tamil Nadu	28.9	11.3	17.6
Tripura	40.6	14.1	26.5
Uttar Pradesh	40.9	29.4	11.5
Uttarakhand	32.7	11.3	21.4
West Bengal	34.3	20	14.3
All Inda	37.2	21.9	15.3

Source: Review of Expert Group to Review the Methodology for Estimation of Poverty (2009) Planning Commission, Government of India; Press Note on Poverty Estimates, 2011 – 12 (2013) Planning Commission, Government of India; PRS. Note: A negative sign before the number in column four (decrease) indicates an increase in percentage of population below the poverty line. History of poverty estimation in India Pre independence poverty estimates: One of the earliest estimations of poverty was done by Dadabhai Naoroji in his book, ‘Poverty and the Un-British Rule in India’.  He formulated a poverty line ranging from Rs 16 to Rs 35 per capita per year, based on 1867-68 prices.  The poverty line proposed by him was based on the cost of a subsistence diet consisting of ‘rice or flour, dhal, mutton, vegetables, ghee, vegetable oil and salt’. Next, in 1938, the National Planning Committee (NPC) estimated a poverty line ranging from Rs 15 to Rs 20 per capita per month.  Like the earlier method, the NPC also formulated its poverty line based on ‘a minimum standard of living perspective in which nutritional requirements are implicit’.  In 1944, the authors of the ‘Bombay Plan’ (Thakurdas et al 1944) suggested a poverty line of Rs 75 per capita per year. Post independence poverty estimates: In 1962, the Planning Commission constituted a working group to estimate poverty nationally, and it formulated separate poverty lines for rural and urban areas – of Rs 20 and Rs 25 per capita per year respectively. VM Dandekar and N Rath made the first systematic assessment of poverty in India in 1971, based on National Sample Survey (NSS) data from 1960-61.  They argued that the poverty line must be derived from the expenditure that was adequate to provide 2250 calories per day in both rural and urban areas.  This generated debate on minimum calorie consumption norms while estimating poverty and variations in these norms based on age and sex. Alagh Committee (1979): In 1979, a task force constituted by the Planning Commission for the purpose of poverty estimation, chaired by YK Alagh, constructed a poverty line for rural and urban areas on the basis of nutritional requirements.  Table 3 shows the nutritional requirements and related consumption expenditure based on 1973-74 price levels recommended by the task force.  Poverty estimates for subsequent years were to be calculated by adjusting the price level for inflation. Table 3: Minimum calorie consumption and per capita consumption expenditure as per the 1979 Planning Commission task force on poverty estimation

Area	Calories	Minimum consumption expenditure (Rs per capita per month)
Rural	2400	49.1
Urban	2100	56.7

Source:  Report of the Expert Group on Estimation of Proportion and Number of Poor, 1993, Perspective Planning Division, Planning Commission; PRS Lakdawala Committee (1993): In 1993, an expert group constituted to review methodology for poverty estimation, chaired by DT Lakdawala, made the following suggestions: (i) consumption expenditure should be calculated based on calorie consumption as earlier; (ii) state specific poverty lines should be constructed and these should be updated using the Consumer Price Index of Industrial Workers (CPI-IW) in urban areas and Consumer Price Index of Agricultural Labour (CPI-AL) in rural areas; and (iii) discontinuation of ‘scaling’ of poverty estimates based on National Accounts Statistics.  This assumes that the basket of goods and services used to calculate CPI-IW and CPI-AL reflect the consumption patterns of the poor. Tendulkar Committee (2009): In 2005, another expert group to review methodology for poverty estimation, chaired by Suresh Tendulkar, was constituted by the Planning Commission to address the following three shortcomings of the previous methods: (i) consumption patterns were linked to the 1973-74 poverty line baskets (PLBs) of goods and services, whereas there were significant changes in the consumption patterns of the poor since that time, which were not reflected in the poverty estimates; (ii) there were issues with the adjustment of prices for inflation, both spatially (across regions) and temporally (across time); and (iii) earlier poverty lines assumed that health and education would be provided by the State and formulated poverty lines accordingly.[1] It recommended four major changes: (i) a shift away from calorie consumption based poverty estimation; (ii) a uniform poverty line basket (PLB) across rural and urban India; (iii) a change in the price adjustment procedure to correct spatial and temporal issues with price adjustment; and (iv) incorporation of private expenditure on health and education while estimating poverty.   The Committee recommended using Mixed Reference Period (MRP) based estimates, as opposed to Uniform Reference Period (URP) based estimates that were used in earlier methods for estimating poverty.[2] It based its calculations on the consumption of the following items: cereal, pulses, milk, edible oil, non-vegetarian items, vegetables, fresh fruits, dry fruits, sugar, salt & spices, other food, intoxicants, fuel, clothing, footwear, education, medical (non-institutional and institutional), entertainment, personal & toilet goods, other goods, other services and durables. The Committee computed new poverty lines for rural and urban areas of each state.  To do this, it used data on value and quantity consumed of the items mentioned above by the population that was classified as poor by the previous urban poverty line.  It concluded that the all India poverty line was Rs 446.68 per capita per month in rural areas and Rs 578.80 per capita per month in urban areas in 2004-05.  The following table outlines the manner in which the percentage of population below the poverty line changed after the application of the Tendulkar Committee’s methodology. Table 4: Percentage of population below poverty line calculated by the Lakdawala Committee and the Tendulkar Committee for the year 2004-05

Committee	Rural	Urban	Total
Lakdawala Committee	28.3	25.7	27.5
Tendulkar Committee	41.8	27.5	37.2

Source: Report of the Expert Group on Estimation of Proportion and Number of Poor, 1993, Perspective Planning Division, Planning Commission; Report of the Expert Group to Review the Methodology for Estimation of  Poverty, 2009, Planning Commission; PRS The Committee also recommended a new method of updating poverty lines, adjusting for changes in prices and patterns of consumption, using the consumption basket of people close to the poverty line.  Thus, the estimates released in 2009-10 and 2011-12 use this method instead of using indices derived from the CPI-AL for rural areas and CPI-IW for urban areas as was done earlier.  Table 5 outlines the poverty lines computed using the Tendulkar Committee methodology for the years 2004-05, 2009-10 and 2011-12. Table 5: National poverty lines (in Rs per capita per month) for the years 2004-05, 2009-10 and 2011-12

Year	Rural	Urban
2004-05	446.7	578.8
2009-10	672.8	859.6
2011-12	816.0	1000.0

Source: Report of the Expert Group to Review the Methodology for Estimation of Poverty (2009) Planning Commission; Poverty Estimates 2009-10 and Poverty Estimates 2011-12, Planning Commission; PRS Rangarajan Committee: In 2012, the Planning Commission constituted a new expert panel on poverty estimation, chaired by C Rangarajan with the following key objectives: (i) to provide an alternate method to estimate poverty levels and examine whether poverty lines should be fixed solely in terms of a consumption basket or if other criteria are also relevant; (ii) to examine divergence between the consumption estimates based on the NSSO methodology and those emerging from the National Accounts aggregates; (iii) to review international poverty estimation methods and indicate whether based on these, a particular method for empirical poverty estimation can be developed in India, and (iv) to recommend how these estimates of poverty can be linked to eligibility and entitlements under the various schemes of the Government of India.  The Committee is expected to submit its report by 2014.

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[1] While private expenditure on education and health was covered in the base year 1973-74, no account was taken of either the increase in the proportion of these in total expenditure over time or of their proper representation in available price indices.

[2] Under the URP method, respondents are asked to detail consumption over the previous 30 days; whereas under the MRP method five low-frequency items (clothing, footwear, durables, education and institutional health expenditure) are surveyed over the previous 365 days, and all other items over the previous 30 days.