1. Conceptual Foundation

Meaning and Purpose

Poverty is a socio-economic condition characterized by the inability of an individual or household to attain a minimum standard of living and satisfy basic human needs—such as nutritious food, safe shelter, clothing, primary healthcare, and basic education. Poverty Line is a monetary expenditure threshold (or income level) used to demarcate the population into two distinct groups: those who possess the purchasing power to meet basic needs (Above Poverty Line - APL) and those who do not (Below Poverty Line - BPL). Poverty Estimation is the statistical process of measuring the incidence, depth, and severity of poverty in an economy using large-scale household consumption expenditure surveys. The primary purpose of estimating poverty is to identify vulnerable populations, track socio-economic progress over time, allocate public resources efficiently, and evaluate the impact of poverty alleviation and social welfare programs.

Importance

In competitive examinations (TGPSC / UPSC), Unit 10.1 is a high-frequency, core topic. Exam questions regularly test:

1. Conceptual distinctions between Absolute Poverty and Relative Poverty, as well as household poor categories (Chronic Poor, Churning Poor, Transient Poor).
2. The evolution of poverty estimation methodology in pre-independence and post-independence India.
3. Committees and their specific anchors (Dadabhai Naoroji, Dandekar & Rath, Y.K. Alagh Committee, Lakdawala Committee, Suresh Tendulkar Committee, and C. Rangarajan Committee).
4. Survey recall periods used by NSSO/NSO (Uniform Recall Period - URP, Mixed Recall Period - MRP, and Modified Mixed Recall Period - MMRP).
5. Detailed recommendations, poverty lines, and headcount ratios of the C. Rangarajan Committee (2012–2014).
6. Quantitative metrics of poverty: Head Count Ratio (HCR), Poverty Gap Index (PGI), Squared Poverty Gap Index (SPGI), and Sen Index.

How Concepts Connect

1. Consumption Expenditure to Poverty Line: Income in developing countries is volatile, subject to under-reporting, and fails to capture non-earning dependents or borrowing-backed consumption. Hence, India uses Monthly Per Capita Consumption Expenditure (MPCE) to fix the Poverty Line.
2. Poverty Line Basket (PLB) to Head Count Ratio: The specific basket of goods and services required for basic survival constitutes the Poverty Line Basket (PLB). Valuing this basket at prevailing market prices yields the monetary Poverty Line. The proportion of the population falling below this line is the Head Count Ratio (HCR).
3. Recall Period Methodology to Poverty Figures: The length of the reference period used during Household Consumption Expenditure Surveys directly alters reported expenditure. Shifting from URP (30-day recall) to MRP (365-day + 30-day) or MMRP (7-day + 30-day + 365-day) captures realistic spending patterns, resulting in modified poverty line cut-offs.
4. Methodological Shifts (Tendulkar vs. Rangarajan): While the Tendulkar Committee moved away from calorie anchors to an urban-consumption-norm basket, the Rangarajan Committee re-synthesized normative nutrition (calories, proteins, fats) with essential non-food behavior, resulting in higher poverty thresholds and a higher estimated poor population (29.5% vs 21.9% for 2011–12).

Key Terms

1. Poverty Line: The threshold of minimum per capita consumption expenditure required to satisfy basic human survival needs.
2. Poverty Line Basket (PLB): The designated basket of physical goods and services (food items, fuel, clothing, footwear, education, medical care, housing) used to calculate the poverty line.
3. Monthly Per Capita Consumption Expenditure (MPCE): The total household consumption expenditure incurred in a 30-day period divided by the total number of household members.
4. Head Count Ratio (HCR): The percentage of the total population whose consumption expenditure falls below the official poverty line.
5. Uniform Recall Period (URP): A survey methodology that asks households for consumption expenditure details over a uniform 30-day reference period for all items.
6. Mixed Recall Period (MRP): A survey methodology that uses a 365-day recall period for 5 low-frequency items (clothing, footwear, durable goods, education, institutional medical care) and a 30-day recall period for all remaining items.
7. Modified Mixed Recall Period (MMRP): A refined survey methodology using a 7-day recall period for highly perishable food items (edible oil, eggs, fish, meat, vegetables, fruits), a 365-day recall period for 5 low-frequency items, and a 30-day recall period for all other items.
8. Poverty Gap Index (PGI): A metric measuring the depth of poverty by calculating the mean distance by which the poor fall below the poverty line, expressed as a percentage of the poverty line.
9. Rangarajan Committee: An expert panel constituted by the Planning Commission in 2012 under Dr. C. Rangarajan to review the Tendulkar methodology and devise a comprehensive poverty estimation framework.

Short Timeline of Poverty Estimation Milestones in India

1. 1867–1868: Dadabhai Naoroji provided the first pre-independence poverty line estimate (₹16 to ₹35 per year) using the "Jail Cost of Living" concept in his book Poverty and Un-British Rule in India.
2. 1938: The National Planning Committee (NPC), chaired by Jawaharlal Nehru, estimated a basic living standard requirement of ₹15 to ₹20 per capita per month.
3. 1944: The Bombay Plan proposed a poverty line threshold of ₹75 per capita per year.
4. 1962: The Planning Commission Working Group formulated separate rural (₹20/month) and urban (₹25/month) poverty lines at 1960–61 prices.
5. 1971: V.M. Dandekar and N. Rath conducted the first systematic assessment based on NSS data, anchoring poverty to a uniform calorie norm of 2,250 calories per person per day.
6. 1979: Y.K. Alagh Committee (Task Force) established official rural-urban differential calorie norms: 2,400 kcal/day (Rural) and 2,100 kcal/day (Urban).
7. 1993: D.T. Lakdawala Committee retained Alagh calorie norms, recommended state-specific poverty lines, and tied inflation updating to CPI-AL (rural) and CPI-IW (urban).
8. 2009: Suresh Tendulkar Committee abandoned pure calorie anchors, adopted a broader PLB (including health and education), applied MRP data, and estimated 2004–05 poverty at 37.2% and 2011–12 poverty at 21.9%.
9. 2012–2014: C. Rangarajan Committee submitted its report in July 2014, introducing the MMRP method, setting revised daily thresholds (₹32 rural / ₹47 urban), and re-estimating 2011–12 poverty at 29.5% (363 million poor).
10. 2015: NITI Aayog Task Force on Elimination of Poverty in India, chaired by Arvind Panagariya, recommended retaining the Tendulkar line for tracking poverty trends while expanding Multidimensional Poverty measurement.

2. Complete Core Notes

A. Definitions & Basic Ideas

1. Income vs. Consumption Expenditure as the Basis for Poverty Estimation

In India, official poverty estimation relies on Household Consumer Expenditure Surveys (CES) conducted periodically by the National Sample Survey Office (NSSO / NSO) under MoSPI, rather than income surveys.

• Why Consumption Expenditure is Preferred:
  1. Income Volatility: Income, especially in agricultural and informal unorganized sectors, fluctuates seasonally and is difficult to record accurately.
  2. Under-reporting of Income: Individuals frequently under-report income due to tax avoidance or lack of record-keeping.
  3. Consumption Reflects Welfare: Consumption expenditure directly captures the actual standard of living, purchasing power, and access to basic goods. It includes non-earning dependents (children and elderly) and accounts for consumption financed through savings, transfers, or credit.

B. Types & Classifications of Poverty

1. Structural Classifications

1. Absolute Poverty:
   • A condition where a household's income or consumption expenditure falls below the minimum monetary threshold required to secure basic physical survival needs (food, water, shelter, clothing).
   • Measured against an absolute benchmark (Poverty Line).
   • Dominant in developing economies.
2. Relative Poverty:
   • A condition where an individual's or group's income/consumption is significantly lower compared to the average standard of living or top income percentiles in society.
   • Measures economic inequality and distribution of national income (analyzed via the Lorenz Curve and Gini Coefficient).
   • Prevalent in developed economies where basic survival needs are generally met, but severe income disparities persist.

2. Household Dynamic Categories (Census / NSSO Classification)

1. Chronic Poor: Individuals who are consistently poor over long periods.
   • Always Poor: Those who never cross above the poverty line (e.g., destitute, landless agricultural laborers).
   • Usually Poor: Those who are generally poor but occasionally rise above the line briefly.
2. Transient / Churning Poor: Individuals who regularly move in and out of poverty.
   • Churning Poor: Small farmers, seasonal construction workers, and informal sector daily wagers who cross the poverty line depending on agricultural harvest or job availability.
   • Occasionally / Situational Poor: Generally non-poor individuals who temporarily fall below the poverty line due to unforeseen adverse events (job loss, crop failure, severe medical emergency, natural disaster).
3. Non-Poor: Individuals whose income and consumption expenditure consistently remain above the poverty line (includes middle-class, wealthy entrepreneurs, and formal professionals).

C. Quantitative Measures & Formulas of Poverty

1. Head Count Ratio (HCR)

• Measures the incidence or proportion of the population living below the poverty line.
• HCR = (Total Number of Poor Persons / Total Population) * 100
• Limitation: Measures how many people are poor, but ignores how poor they are (does not measure the depth or intensity of poverty).

2. Poverty Gap Index (PGI)

• Measures the depth and severity of poverty by calculating the average shortfall of poor households below the poverty line.
• PGI = (Poverty Line - Average Consumption Expenditure of Poor) / Poverty Line
• Expressed as a percentage, it indicates the minimum economic transfer required to bring all poor individuals up to the poverty line.

3. Squared Poverty Gap Index (SPGI)

• Measures inequality among the poor by squaring the individual poverty gaps before averaging them.
• Gives greater weight to households living furthest below the poverty line.

4. Sen Index of Poverty

• Formulated by Nobel laureate Amartya Sen, combining the Head Count Ratio (H), Poverty Gap Index (I), and income inequality among the poor measured by the Gini Coefficient (G).
• Sen Index = H * [I + (1 - I) * G]

D. Evolution of Poverty Estimation Committees in India

1. Pre-Independence & Early Estimates

1. Dadabhai Naoroji (1867–68):
   • Book: Poverty and Un-British Rule in India.
   • Concept: "Jail Cost of Living" (cost of basic diet for prisoners using prices of rice, flour, ghee, salt).
   • Estimate: ₹16 to ₹35 per person per year.
2. National Planning Committee (1938):
   • Chaired by Jawaharlal Nehru. Fixed poverty line at ₹15 to ₹20 per capita per month.
3. Bombay Plan (1944):
   • Industrialists proposed a baseline of ₹75 per capita per year.

2. Post-Independence Official Committees

1. Planning Commission Working Group (1962):
   • Recommended separate national poverty lines: ₹20 per month per capita for rural areas and ₹25 per month per capita for urban areas (at 1960–61 prices), excluding health and education (expected to be provided by the state).
2. Dandekar and Rath Committee (1971):
   • First systematic study based on National Sample Survey (NSS) consumer expenditure data (1960–61).
   • Established a uniform average energy norm: 2,250 calories per person per day for both rural and urban areas.
   • Poverty Line cut-off: ₹15 per capita per month (Rural) and ₹22.50 per capita per month (Urban) at 1960–61 prices.
3. Y.K. Alagh Committee (1979 - Task Force):
   • Constructed separate nutrition-based calorie norms based on age, sex, and activity levels:
     • Rural Area: 2,400 calories per person per day (higher due to heavy physical labor in farming).
     • Urban Area: 2,100 calories per person per day.
   • Corresponding MPCE cut-offs (1973–74 prices): ₹49.09 per month (Rural) and ₹56.64 per month (Urban).
4. D.T. Lakdawala Committee (1989 / 1993):
   • Retained the Alagh calorie norms (2,400 rural / 2,100 urban).
   • Discontinued the practice of using a single national price deflator; introduced State-Specific Poverty Lines.
   • Recommended updating poverty lines for inflation using specific consumer price indices:
     • Rural poverty lines updated using CPI-AL (Consumer Price Index for Agricultural Labourers).
     • Urban poverty lines updated using CPI-IW (Consumer Price Index for Industrial Workers).
5. Suresh Tendulkar Committee (2005 / 2009):
   • Key Methodological Shifts:
     1. Moved away from pure calorie anchoring: Recognized that consumption patterns had shifted toward non-cereal food, health, and education.
     2. Uniform Poverty Line Basket (PLB): Applied the urban consumption basket norm across both rural and urban areas (adjusting for spatial price differences).
     3. Shifted from URP to MRP: Switched data baseline to Mixed Recall Period (MRP).
     4. Incorporated Health and Education Spending: Explicitly included private expenditure on health and education.
   • Poverty Line Cut-offs for 2011–12 (at 2011–12 prices):
     • Rural: ₹816 per month (approx. ₹27.20 / ₹27 per day).
     • Urban: ₹1,000 per month (approx. ₹33.33 / ₹33 per day).
   • Estimated Poverty Ratio for 2011–12:
     • All-India: 21.9% (269.8 million poor).
     • Rural: 25.7%; Urban: 13.7%.
     • (For 2004–05, Tendulkar estimated All-India poverty at 37.2%).

E. Detailed Focus: C. Rangarajan Committee on Poverty (2012–2014)

1. Background & Purpose

Due to intense public, academic, and political criticism regarding the low poverty thresholds recommended by the Tendulkar Committee (popularly criticized as the "₹27/₹33 per day poverty line"), the Planning Commission constituted an Expert Group to Review the Methodology for Measurement of Poverty in June 2012, under the chairmanship of eminent economist Dr. C. Rangarajan (former RBI Governor). The committee submitted its final report on July 6, 2014.

2. Core Methodological Framework

1. Re-introduction of Normative Nutritional Standards:
   • Unlike Tendulkar, Rangarajan restored specific nutritional requirements, but expanded them beyond calories to include proteins and fats:
     • Rural Nutritional Norm: 2,155 kcal calories, 48 grams protein, and 28 grams fat per person per day.
     • Urban Nutritional Norm: 2,090 kcal calories, 50 grams protein, and 26 grams fat per person per day.
2. Behavioral Non-Food Component Addition:
   • Computed normative non-food expenditure based on actual spending behavior of households located around the median consumption group for essential non-food items:
     • Clothing, footwear, house rent, transport, education, and health.
3. Adoption of Modified Mixed Recall Period (MMRP):
   • Recommended using MMRP data from NSO surveys as it captures household expenditure far more accurately than URP or MRP:
     • 7-day recall: Edible oil, eggs, fish, meat, vegetables, fruits, spices.
     • 30-day recall: Fuel, light, miscellany, remaining food items.
     • 365-day recall: Clothing, footwear, education, institutional medical care, durable goods.

3. Poverty Line Thresholds (2011–12 Prices)

1. Per Capita Monthly Consumption Expenditure (MPCE):

   • Rural Areas: ₹972 per month (approx. ₹32.40 / ₹32 per day).
   • Urban Areas: ₹1,407 per month (approx. ₹46.90 / ₹47 per day).

2. Family Household Threshold (Family of 5 Members):

   • Rural Household: ₹4,860 per month (972 * 5).
   • Urban Household: ₹7,035 per month (1407 * 5).

4. Poverty Ratio & Headcount Estimates (Rangarajan vs. Tendulkar for 2011–12)

• All-India Poverty Ratio (2011–12):
  • Rangarajan Estimate: 29.5% of population (Total Poor: 363.0 Million / 36.3 Crore).
  • Tendulkar Estimate: 21.9% of population (Total Poor: 269.8 Million / 26.98 Crore).
• Rural Poverty Ratio (2011–12):
  • Rangarajan Estimate: 30.9% (260.5 million rural poor).
  • Tendulkar Estimate: 25.7% (216.5 million rural poor).
• Urban Poverty Ratio (2011–12):
  • Rangarajan Estimate: 26.4% (102.5 million urban poor).
  • Tendulkar Estimate: 13.7% (53.1 million urban poor).
• 2009–10 Historical Baseline (Rangarajan):
  • All-India Poverty Ratio in 2009–10 was 38.2% (454.1 million poor).
  • Poverty Decline: Poverty declined by 8.7 percentage points between 2009–10 and 2011–12 (lifting 91.1 million people out of poverty in 2 years).

F. Plain-Text Formulas & Equations

1. Head Count Ratio (HCR): HCR = (Number of People Below Poverty Line / Total Population) * 100

2. Monthly Per Capita Consumption Expenditure (MPCE): MPCE = Total Household Consumption Expenditure in 30 Days / Total Household Size

3. Poverty Gap Index (PGI): PGI = (Poverty Line Expenditure - Average Consumption Expenditure of Poor) / Poverty Line Expenditure

4. Rangarajan Rural Household Poverty Threshold (Family of 5): Rural Household Threshold = Rs 972 * 5 = Rs 4,860 per month

5. Rangarajan Urban Household Poverty Threshold (Family of 5): Urban Household Threshold = Rs 1407 * 5 = Rs 7,035 per month

3. Key Concepts & Distinctions

Table 1: Suresh Tendulkar Committee vs. C. Rangarajan Committee

Table 2: Survey Recall Periods (URP vs. MRP vs. MMRP)

Table 3: Absolute Poverty vs. Relative Poverty

4. Important One-Liners

1. Poverty estimation in India is based on Monthly Per Capita Consumption Expenditure (MPCE) data collected by NSO/NSSO.
2. Consumption expenditure is preferred over income because income in informal sectors is volatile and prone to under-reporting.
3. The Head Count Ratio (HCR) measures the percentage of the population living below the official poverty line.
4. The Poverty Gap Index (PGI) measures the depth and severity of poverty.
5. Dadabhai Naoroji introduced the first pre-independence poverty line using the "Jail Cost of Living" (₹16 to ₹35/year).
6. V.M. Dandekar and N. Rath (1971) were the first to use NSS consumer expenditure data to set a uniform norm of 2,250 calories/day.
7. The Y.K. Alagh Committee (1979) fixed official differential calorie norms: 2,400 kcal/day for rural and 2,100 kcal/day for urban areas.
8. The D.T. Lakdawala Committee (1993) introduced state-specific poverty lines updated using CPI-AL (rural) and CPI-IW (urban).
9. The Suresh Tendulkar Committee (2009) moved away from pure calorie anchors to an urban-consumption-norm PLB.
10. Tendulkar Committee used Mixed Recall Period (MRP) data for 2004–05 and 2011–12 estimates.
11. Under Tendulkar methodology, the 2011–12 poverty line was ₹816/month (₹27/day) rural and ₹1,000/month (₹33/day) urban.
12. Tendulkar Committee estimated All-India poverty for 2011–12 at 21.9% (269.8 million poor).
13. The C. Rangarajan Committee was set up in June 2012 and submitted its report in July 2014.
14. Rangarajan Committee re-introduced normative nutrition standards combining calories, proteins, and fats.
15. Rangarajan rural nutritional norms: 2,155 kcal calories, 48g protein, and 28g fat per person per day.
16. Rangarajan urban nutritional norms: 2,090 kcal calories, 50g protein, and 26g fat per person per day.
17. The Rangarajan Committee adopted the Modified Mixed Recall Period (MMRP) survey methodology.
18. MMRP uses a 7-day recall period for highly perishable food items like edible oil, eggs, fish, meat, vegetables, and fruits.
19. Under Rangarajan methodology, the rural poverty line for 2011–12 was ₹972 per month (₹32.40 / ₹32 per day).
20. Under Rangarajan methodology, the urban poverty line for 2011–12 was ₹1,407 per month (₹46.90 / ₹47 per day).
21. For a rural family of 5, the Rangarajan poverty line threshold was ₹4,860 per month.
22. For an urban family of 5, the Rangarajan poverty line threshold was ₹7,035 per month.
23. The Rangarajan Committee estimated All-India poverty for 2011–12 at 29.5% (363 million poor).
24. According to Rangarajan estimates, rural poverty in 2011–12 was 30.9% and urban poverty was 26.4%.
25. Rangarajan report estimated that poverty declined from 38.2% in 2009–10 to 29.5% in 2011–12 (a drop of 8.7 percentage points).
26. Rangarajan urban poverty ratio (26.4%) was significantly higher than Tendulkar's urban estimate (13.7%).
27. Churning poor refers to households that regularly move in and out of poverty due to seasonal employment or harvest cycles.
28. The NITI Aayog Task Force (2015) on poverty elimination was chaired by Arvind Panagariya.
29. Official poverty lines vary across Indian states due to inter-state price level variations.
30. Sen Index incorporates Head Count Ratio, Poverty Gap Index, and Gini Coefficient among the poor.

5. PYQ-Based Bits

• Head Count Ratio Definition (AO 2023 Q37):
  • The proportion of the population whose consumption expenditure is below the official poverty line is called the Head Count Ratio (HCR) or Poverty Ratio.
• Garibi Hatao Plan Association (PL 2023 Q75):
  • Direct poverty reduction and Garibi Hatao measures were explicitly emphasized in the 5th Five-Year Plan (prepared by D.P. Dhar).
• State Poverty Line Variations (UPSC 2019 / State PSCs):
  • Official poverty lines in India vary from state to state because price levels of the poverty line basket vary across states.
• Calorie Criteria of Alagh / Lakdawala Committees (UPSC / State PSCs):
  • The official calorie norm for rural areas is 2,400 kcal per person per day, while for urban areas it is 2,100 kcal per person per day.
• Tendulkar vs Rangarajan Poverty Ratio Differences (State PSCs):
  • For the year 2011–12, Suresh Tendulkar Committee estimated poverty at 21.9%, whereas the C. Rangarajan Committee estimated it higher at 29.5%.
• MMRP Survey Innovation (UPSC / State PSCs):
  • The Modified Mixed Recall Period (MMRP) introduced a 7-day recall period for perishable items (vegetables, fruits, milk, eggs, meat) to capture actual nutritional intake more accurately.
• Recall Period Matching (State PSCs):
  • URP = 30-day uniform recall; MRP = 365-day (5 items) + 30-day; MMRP = 7-day (perishables) + 30-day + 365-day.

6. Exam Analysis

• Priority: HIGH (Unit 10.1 is a core, high-yield conceptual and quantitative subtopic tested regularly in civil services economics papers).
• Frequently Tested Subtopics:
  1. Head Count Ratio (HCR) definition and formula.
  2. Sequential chronology of poverty committees (Alagh 1979 → Lakdawala 1993 → Tendulkar 2009 → Rangarajan 2014).
  3. Rangarajan Committee (2012–2014) specific figures: ₹32/day rural (₹972/month), ₹47/day urban (₹1407/month), ₹4860/family rural, ₹7035/family urban, and 29.5% All-India poverty ratio.
  4. Methodological differences between Tendulkar (MRP, no calorie anchor, 21.9%) and Rangarajan (MMRP, nutrition + non-food behavior, 29.5%).
  5. Survey recall periods (URP vs. MRP vs. MMRP).
• Common Question Patterns: Direct numerical matching of poverty thresholds, statement-verification questions on committee recommendations, and identification of recall period definitions.
• Factual / Conceptual / Numerical / Statement Tendency: Heavily Statement-Based Conceptual combined with Exact Numerical Cut-offs & Percentages (21.9% vs 29.5%, ₹27/₹33 vs ₹32/₹47).
• Simple Frequency Terms: Poverty Line Committee Estimates (Very Frequent); Rangarajan vs Tendulkar Comparison (Very Frequent); Head Count Ratio & Poverty Measures (Frequent); Survey Recall Methods (Frequent).

7. Exam Traps

• Confusion: Believing that official poverty estimation in India is based on household income surveys. → Correct understanding: Official poverty estimation in India is based STRICTLY on Household Monthly Per Capita Consumption Expenditure (MPCE) data, NOT on income data.

• Confusion: Assuming that the Rangarajan Committee completely abandoned calorie norms like the Tendulkar Committee. → Correct understanding: The Rangarajan Committee RESTORED nutritional standards, expanding them to include calories (2,155 rural / 2,090 urban), proteins (48g rural / 50g urban), and fats (28g rural / 26g urban).

• Confusion: Believing that Rangarajan's poverty ratio for 2011–12 (29.5%) was lower than Tendulkar's estimate (21.9%). → Correct understanding: Rangarajan's poverty estimate for 2011–12 is HIGHER at 29.5% (363 million poor) compared to Tendulkar's 21.9% (269.8 million poor), mainly because Rangarajan raised urban poverty thresholds significantly.

• Confusion: Assuming that the Modified Mixed Recall Period (MMRP) uses a 30-day recall period for perishable food items. → Correct understanding: MMRP uses a 7-DAY recall period for perishable food items (edible oil, eggs, fish, meat, vegetables, fruits) to reduce memory recall error.

• Confusion: Believing that the Head Count Ratio (HCR) measures the depth or severity of poverty among poor households. → Correct understanding: HCR measures only the proportion (incidence) of poor people in the total population. The depth of poverty is measured by the Poverty Gap Index (PGI).

8. Rapid Revision

1. Poverty Measurement Base: Monthly Per Capita Consumption Expenditure (MPCE) collected by NSO.
2. Head Count Ratio (HCR): Percentage of total population living below the poverty line.
3. Poverty Gap Index (PGI): Measures the depth and severity of poverty (shortfall below poverty line).
4. Dadabhai Naoroji (1867-68): Jail Cost of Living (₹16 to ₹35/year).
5. Dandekar & Rath (1971): First NSS-based estimate using a uniform 2,250 calories/day norm.
6. Alagh Committee (1979): 2,400 calories/day (Rural) and 2,100 calories/day (Urban).
7. Lakdawala Committee (1993): State-specific poverty lines updated via CPI-AL (Rural) and CPI-IW (Urban).
8. Tendulkar Committee (2009): Abandoned pure calorie anchor; adopted MRP data and urban PLB.
9. Tendulkar 2011-12 Cut-offs: ₹816/month (₹27/day) Rural; ₹1,000/month (₹33/day) Urban.
10. Tendulkar 2011-12 Poverty %: 21.9% All-India (25.7% Rural, 13.7% Urban; 269.8 million poor).
11. Rangarajan Committee: Formed June 2012; Submitted July 2014 to Planning Commission.
12. Rangarajan Nutrition Norms: Rural (2,155 kcal, 48g protein, 28g fat); Urban (2,090 kcal, 50g protein, 26g fat).
13. Rangarajan Survey Method: Modified Mixed Recall Period (MMRP) (7-day for perishables, 30-day general, 365-day for 5 low-frequency items).
14. Rangarajan 2011-12 Rural Line: ₹972 per month (₹32.40 / ₹32 per day).
15. Rangarajan 2011-12 Urban Line: ₹1,407 per month (₹46.90 / ₹47 per day).
16. Rangarajan Rural Household Line (Family of 5): ₹4,860 per month.
17. Rangarajan Urban Household Line (Family of 5): ₹7,035 per month.
18. Rangarajan 2011-12 All-India Poverty %: 29.5% (363.0 Million / 36.3 Crore poor).
19. Rangarajan 2011-12 Rural Poverty %: 30.9% (260.5 million).
20. Rangarajan 2011-12 Urban Poverty %: 26.4% (102.5 million).
21. Rangarajan Poverty Decline: Dropped from 38.2% (2009-10) to 29.5% (2011-12) — an 8.7 percentage point drop.
22. NITI Aayog Task Force (2015): Chaired by Arvind Panagariya; recommended retaining Tendulkar line for tracking while focusing on MPI.
23. Inter-state Poverty Line Variation: Driven by differences in state-level price levels of the consumption basket.
24. Churning Poor: Households regularly moving in and out of poverty (e.g., seasonal agricultural laborers).
25. Sen Index: Combines Head Count Ratio, Poverty Gap Index, and Gini Coefficient of the poor.