Methods of Poverty Estimation in India

Measuring poverty sounds simple on paper – count who can’t afford a basic life. But in a country as vast and diverse as India, that single question has sparked decades of debate among economists, statisticians, and policymakers. How do you decide who is “poor”? Is it someone who cannot buy enough food, or someone who lacks shelter, schooling, and healthcare? The answer has evolved considerably, and the journey of poverty measurement mirrors how our understanding of deprivation itself has matured.

Why poverty estimation matters so much 🔗

Before we dive into the methodologies, it’s worth understanding why this matters. Poverty estimates aren’t just numbers in a report – they determine who gets subsidised food through the Public Distribution System, who qualifies for housing schemes, and who is eligible for health insurance under programmes like Ayushman Bharat. A flawed methodology can either leave genuinely poor families out or include well-off households by mistake. The stakes are enormous, both financially and morally.

Historically, poverty measurement in the country began much earlier than most people realise. Dadabhai Naoroji, in his famous book Poverty and the Un-British Rule in India, made the first documented attempt to construct a poverty line, pegging it between Rs 16 and Rs 35 per capita per year based on 1867-68 prices. His estimates were rooted in the cost of a subsistence diet consisting of rice or flour, dhal, mutton, vegetables, ghee, vegetable oil and salt. Post-independence, the systematic effort really took off with successive expert committees, each refining the approach of its predecessor.

The Y.K. Alagh Committee: The foundation stone (1979) 🔗

The first landmark in post-independence poverty estimation came with the task force headed by Y.K. Alagh. Set up by the Planning Commission in 1979, this committee was asked to build a systematic, replicable method for measuring poverty across the country.

The Alagh Committee took a nutritional approach. It argued that a household should be considered poor if it could not afford the minimum calorie intake needed for a healthy life. The committee fixed this requirement at 2,400 calories per person per day in rural areas and 2,100 calories in urban areas – the difference reflecting the more physically demanding nature of rural work.

These calorie norms were then translated into monetary terms based on the cost of a food basket that could deliver those calories. Based on 1973-74 prices, the committee set the rural and urban poverty lines at Rs 49.09 and Rs 56.64 per capita per month respectively. Estimates for subsequent years were to be calculated by adjusting these figures for inflation.

What the Alagh approach got right – and where it fell short 🔗

The strength of this approach was its simplicity and scientific grounding. For the first time, there was an all-India standardised methodology that could be applied consistently. However, as the economy grew and consumption patterns shifted, problems emerged. The poverty line basket remained frozen in 1973-74 patterns, ignoring the fact that households now spent significantly on health, education, transport, and fuel. A family that met its calorie needs on cheap starchy foods could still be severely deprived in every other sense.

The Lakdawala Committee: A bridge between eras (1993) 🔗

Before we get to the Tendulkar reforms, it’s worth briefly acknowledging the D.T. Lakdawala Committee of 1993, which recommended that consumption expenditure should continue to be calculated based on calorie consumption, but with state-specific poverty lines updated using the Consumer Price Index for Industrial Workers (CPI-IW) in urban areas and the Consumer Price Index for Agricultural Labour (CPI-AL) in rural areas. It also ended the practice of scaling poverty estimates using National Accounts Statistics. The Lakdawala methodology shaped official estimates until it was replaced in the late 2000s.

The Tendulkar Committee: A paradigm shift (2009) 🔗

By the mid-2000s, it had become obvious that the calorie-based method no longer captured how ordinary households lived. The Planning Commission set up an expert group under Prof. Suresh Tendulkar in December 2005, and the committee submitted its report in 2009. This was arguably the most consequential reform in the history of Indian poverty measurement.

Why the Tendulkar Committee was needed 🔗

The committee identified three specific problems with the existing method. First, consumption patterns were linked to the 1973-74 poverty line baskets of goods and services, whereas there were significant changes in the consumption patterns of the poor since that time that were not reflected in the poverty estimates. Second, there were problems with adjusting prices for inflation, both across regions and across time. Third, earlier poverty lines had assumed health and education would be provided by the State – an assumption that had broken down as households increasingly paid out of pocket for both.

Key recommendations of the Tendulkar Committee 🔗

Moving beyond calorie norms: The committee shifted from calorie consumption as the sole anchor for poverty estimation to a broader view based on actual consumption of a wider set of items – cereals, pulses, milk, edible oil, vegetables, fruits, clothing, fuel, education, and medical expenses.

A uniform all-India urban poverty line basket: Unlike earlier methods that used separate rural and urban baskets, the Tendulkar Committee adopted a uniform poverty line basket derived from urban consumption patterns and extended it to rural areas with price adjustments. This allowed for a consistent comparison across geographies.

Including private expenditure on health and education: This was perhaps the most socially significant change. The committee recognised that poor households were bearing real costs for schooling and medical treatment, and these had to be factored into the minimum expenditure threshold.

Mixed Reference Period (MRP): The Committee recommended using Mixed Reference Period based estimates, as opposed to Uniform Reference Period based estimates that were used in earlier methods for estimating poverty. Under MRP, households are asked about consumption of frequently purchased items (like food) over the last 30 days, but about infrequently purchased items (like clothing, footwear, durables, education, and institutional health expenses) over a 365-day recall period. This reduced recall bias and gave more accurate estimates.

A new price adjustment procedure: The committee introduced implicit price indices derived from the NSSO’s own consumer expenditure survey, using Fisher price indices to update poverty lines over time.

The numbers and their reception 🔗

Using the new methodology, the committee estimated the all-India poverty line at Rs 446.68 per capita per month in rural areas and Rs 578.80 per capita per month in urban areas for 2004-05. In 2011-12 prices, this translated to roughly Rs 27 per day in rural areas and Rs 33 per day in urban areas. The line was immediately criticised for being too low – how could anyone live a dignified life on Rs 33 a day in an Indian city? The political backlash was so strong that the government eventually constituted the Rangarajan Committee in 2012, which raised the thresholds to ₹47 a day in cities and ₹32 in villages using a Modified Mixed Reference Period (MMRP).

The N.C. Saxena Committee and the SECC approach (2011) 🔗

Parallel to the debate about the monetary poverty line, another important question was brewing: how do we actually identify which households are poor on the ground? A national percentage figure is useful for policy, but welfare schemes need to know exactly which families should get ration cards, housing benefits, or old-age pensions.

The Ministry of Rural Development set up an expert group chaired by Dr. N.C. Saxena in 2008 to design a new methodology for the Below Poverty Line (BPL) census in rural areas. A parallel committee under S.R. Hashim was set up for urban areas. Their recommendations fundamentally shifted the way households were identified for welfare eligibility, moving away from a single numerical cut-off to a deprivation-based approach.

A three-fold classification of households 🔗

The Saxena Committee proposed a three-step method for identifying BPL households. The committee recommended automatically excluding those that satisfy certain exclusion criteria, then automatically including those that satisfy certain inclusion criteria, and identifying the rest of the BPL recipients using a scoring method based on a weighted sum of key census questions.

Automatically excluded households: Families that clearly were not poor – those owning motorised vehicles, mechanised farm equipment, pucca houses of a certain size, or households with government employees or members paying income tax – would be kept out of the BPL list.

Automatically included households: These would be the households facing extreme social destitution and would automatically be included for the welfare benefits of the government. This category covered the most vulnerable – houseless families, destitute households surviving on alms, manual scavenger households, primitive tribal groups, and legally released bonded labourers.

Other households: All households in between would be assessed on a set of deprivation indicators – things like kuccha housing, illiteracy of the head of household, disability, presence of a single female earner, and so on. Points would be assigned for each deprivation, and households would be ranked by their cumulative score for graded welfare benefits.

The Socio-Economic and Caste Census (SECC) 🔗

The Saxena Committee’s thinking directly shaped the Socio-Economic and Caste Census, launched in 2011 as a comprehensive door-to-door survey to capture the socio-economic status of every household in India – both rural and urban – and to collect caste-wise data. The SECC finally operationalised 14 automatic exclusion parameters, 5 automatic inclusion parameters, and 7 deprivation indicators for ranking the remaining households.

The SECC was revolutionary in several ways. It was the first paperless census in the country, conducted on handheld electronic devices across 640 districts. It also captured caste data systematically for the first time since 1931. Importantly, the SECC defines poverty through deprivation rather than consumption expenditure – a significant philosophical break from the Tendulkar and Rangarajan committees, both of which remained anchored in monetary thresholds.

Why the deprivation approach matters 🔗

The SECC approach recognises that poverty is multidimensional. A landless casual labourer living in a kuccha hut with an illiterate head of household is deprived in ways that a simple consumption survey might miss. By capturing these dimensions directly, the method allows welfare schemes to be targeted with much greater precision. Households identified as highly deprived have the highest inclusion priority under government welfare schemes, and the use of Aadhaar in beneficiary-oriented social sector programmes further checks duplications.

That said, the SECC approach has its critics too. The data had initial quality problems, with errors in enumeration. Defining poverty through deprivation is theoretically elegant but can be hard to implement uniformly across states. And critics have argued that the Ministry of Rural Development, which conducted the survey, may be more vulnerable to political pressures than a statutory statistical body like the NSSO.

Putting the committees in conversation 🔗

Looking at these three committees together tells a story of evolving thought. The Alagh Committee gave the country its first rigorous, calorie-based framework. The Tendulkar Committee broadened the idea of poverty to include modern realities like health and education spending, while tightening the statistical methods. The Saxena Committee and the SECC turned attention from how many are poor to which specific households are poor and why – a shift from aggregate measurement to targeted identification.

None of these methods is perfect, and each reflects the policy concerns of its time. What connects them is a growing recognition that poverty is not a single number but a complex bundle of deprivations, and that measuring it well is the first step toward eliminating it.

What do you think? Should the official poverty line continue to be anchored in consumption expenditure, or is it time to fully embrace a multidimensional index based on deprivation indicators? And given how much India’s economy has transformed over the past decade, is there a case for a fresh expert committee to redesign the methodology for a middle-income country context?

References

1. https://www.civilsdaily.com/poverty-definitions-measurement-and-controversies-part-2/
2. https://prsindia.org/theprsblog/more-privatisation-on-the-cards?page=139&per-page=1
3. https://www.prsindia.org/tags/alagh-committee
4. https://testbook.com/question-answer/the-tendulkar-committee-on-poverty-estimates-made–60ed3cde5822dabf4c7d0efc
5. https://www.drishtiias.com/to-the-points/paper3/poverty-estimation-in-india
6. https://ophi.org.uk/sites/default/files/2024-03/ophi-wp-54.pdf
7. https://byjus.com/free-ias-prep/socio-economic-caste-census/
8. https://testbook.com/ias-preparation/socio-economic-caste-census
9. https://iaspoint.com/socio-economic-and-caste-census-secc/