What are the key differences in poverty estimation methods used by Tendulkar and Rangarajan?
Of course. This is an excellent and frequently asked question that touches upon a core concept in India's social development policy. Understanding the evolution of poverty measurement is crucial for any serious UPSC aspirant. Let's break down the differences between the Tendulkar and Rangarajan committees.
Opening
The measurement of poverty in India has been a subject of intense debate and has evolved significantly over the decades. The Planning Commission (now NITI Aayog) has periodically constituted expert groups to revisit and refine the methodology for estimating poverty. The two most significant modern committees in this lineage are the Expert Group headed by Suresh D. Tendulkar (constituted in 2005, report submitted in 2009) and the Expert Group headed by Dr. C. Rangarajan (constituted in 2012, report submitted in 2014). While both aimed to provide a more realistic picture of poverty than earlier methods, they differed substantially in their approach, basket of goods, and resulting poverty lines.
Comparison Table: Tendulkar vs. Rangarajan Committee
| Feature | Tendulkar Committee (Report 2009) | Rangarajan Committee (Report 2014) |
|---|---|---|
| Basis of Poverty Line | Shifted from calorie intake to a broader definition including expenditure on education, health, transport, and electricity. | Retained the core idea of expenditure but expanded the normative basket for food and non-food items. |
| Data Source | Mixed Reference Period (MRP) consumption expenditure data from the National Sample Survey Office (NSSO). | Modified Mixed Reference Period (MMRP) consumption expenditure data from the NSSO. |
| Poverty Line (2011-12) | ₹816 per capita per month for rural areas and ₹1,000 for urban areas. | ₹972 per capita per month for rural areas and ₹1,407 for urban areas. |
| Poverty Estimate (2011-12) | 21.9% of the population was below the poverty line. (As per the Tendulkar Committee methodology) | 29.5% of the population was below the poverty line. (As per the Rangarajan Committee methodology) |
| Calorie Norm | Implicitly considered, not an explicit anchor. The average calorie intake for the derived poverty line was below the earlier norms. | Explicitly anchored in normative calorie requirements: 2155 kcal/person/day in rural areas and 2090 kcal/person/day in urban areas. |
| Non-Food Expenditure | Based on observed expenditure of households near the poverty line. | Based on normative standards for essential non-food items like clothing, rent, and transport, plus a median fractile of observed expenditure for other items. |
| Official Status | The methodology was officially accepted by the Planning Commission in 2011 and used for poverty estimation. | The report was submitted to the government in 2014 but was not officially adopted. The Tendulkar line remains the benchmark for official comparisons. |
Key Differences Explained
-
Shift from Calorie-Centric to a Holistic View: The Tendulkar Committee marked a decisive break from the previous calorie-anchored poverty lines (like the Alagh Committee, 1979). It argued that poverty is not just about food but also about the inability to afford essential non-food items like education and healthcare. It used a "poverty basket" that reflected actual consumption patterns. The Rangarajan Committee, while agreeing on the importance of non-food items, brought the focus partially back to nutrition by explicitly anchoring its food expenditure component to specific calorie, protein, and fat norms.
-
Determination of the Poverty Line: Tendulkar's method was novel. It started with the urban poverty line from 2004-05, which was based on the consumption basket of households around the old poverty line, and then used Price Adjustment Factors (specifically, Fisher price indices) to derive the rural poverty line from this urban one. In contrast, the Rangarajan Committee calculated separate poverty lines for rural and urban areas independently, based on their distinct consumption baskets and normative requirements.
-
Data Collection Reference Period: The Tendulkar Committee used the Mixed Reference Period (MRP) data from NSSO surveys. In MRP, expenditure on five low-frequency non-food items (clothing, footwear, durables, education, and institutional medical expenses) is collected over a 365-day recall period, while expenditure on all other items is collected over a 30-day recall period. The Rangarajan Committee used a Modified Mixed Reference Period (MMRP), which further refined this by using a 7-day recall for some perishable food items, a 365-day recall for the five MRP non-food items, and a 30-day recall for the rest. This was done to capture consumption data more accurately.
-
Resulting Poverty Estimates: The most visible difference was in the final numbers. For the year 2011-12, the Tendulkar methodology estimated that 21.9% of Indians were poor. The Rangarajan methodology, with its higher poverty line, estimated a significantly larger proportion of the population—29.5%—as poor. This difference of nearly 7.6 percentage points translates to about 93 million people, highlighting the profound impact of methodological choices.
UPSC Framing
For the Civil Services Examination, examiners are not just looking for a rote memorization of poverty numbers. They expect a nuanced understanding of the 'why' behind these differences and their policy implications.
-
Conceptual Clarity: Can you articulate the shift from a 'survival' or 'calorie-based' definition of poverty to a more 'dignified living' or 'capability-based' approach? Mentioning Amartya Sen's work on capabilities as an intellectual backdrop to the Tendulkar Committee's thinking adds depth.
-
Policy Implications: A higher poverty line (Rangarajan) implies a larger number of beneficiaries for poverty alleviation schemes, which has significant fiscal implications for the Union Budget. A lower line (Tendulkar) might suggest faster progress in poverty reduction but could be criticized for leaving out the genuinely needy. You should be able to discuss this trade-off.
-
Continuity and Current Status: It is crucial to state that the Rangarajan Committee's report was not officially adopted. The Tendulkar poverty line, despite its criticisms, remains the de-facto official line for comparing poverty over time. However, for targeting beneficiaries, the government now largely uses the Socio-Economic Caste Census (SECC) 2011 data and, more recently, the Multidimensional Poverty Index (MPI).
-
The Way Forward (MPI): A top-tier answer will connect this debate to the current global and national shift towards Multidimensional Poverty measurement. Mention the NITI Aayog's National MPI (based on the Alkire-Foster methodology) which uses 12 indicators across health, education, and standard of living, reflecting a further evolution beyond consumption-based poverty lines. As per the NITI Aayog's 'National Multidimensional Poverty Index: A Progress Review 2023', India's multidimensional poverty fell from 24.85% in 2015-16 to 14.96% in 2019-21. This shows a move towards a more comprehensive and dashboard-based approach to understanding deprivation.