CPI for Rural Labourers

Also called: CPI-RL · Topic: Inflation and Index Numbers: CPI, WPI, IIP and the Deflator · NCERT: Class 11, Ch 7 "Index Numbers"

Meaning

CPI for Rural Labourers (CPI-RL) is a consumer price index compiled by the Labour Bureau. It tracks how the retail cost of a fixed basket of goods and services changes for rural labourers, meaning both agricultural and non-agricultural workers in villages. Its base is now 2019=100, in effect from the June 2025 index [5]. The old base was 1986-87=100.

• Formula: CPI = (Cost of the fixed basket in the current period ÷ Cost of the same basket in the base year) × 100
• Why it matters:
• It measures the cost of living of India's poorest wage earners.
• It is used to revise minimum wages in rural areas, so their wages keep up with prices.

Explanation

How it works

• Reference group: households of rural labourers. This group is wider than CPI-AL, which covers only agricultural labourers.
• Basket of commodities: a fixed set of goods and services that these households usually buy.

• Each item's weight (how much it counts) comes from household consumption expenditure surveys. The bigger an item's share of the family budget, the bigger its weight.

• Retail prices: the index uses the prices people pay in shops, not wholesale (bulk-trade) prices.

• Base year: the reference year, where the index = 100. For CPI-RL it is 2019=100 from June 2025 [5].
• Laspeyres-type index: the basket quantities stay fixed at base-year levels. So the index shows only price change, not a change in what people buy.

How to read a CPI-RL number (NCERT example)

• NCERT gives CPI-RL (1986-87=100) = 878 in May 2017.
• Meaning:
• A rural labourer spent ₹100 on the typical basket in 1986-87.
• The same basket cost ₹878 in May 2017.

• So the prices of that basket rose 778% over those years.

• The index asks whether the worker can still afford the same basket. It measures purchasing power (how much money can buy). It does not measure what the worker actually bought.

Construction: the family budget method (NCERT)

• Price relative (R) = (p₁ ÷ p₀) × 100. Here p₀ is the base-year price and p₁ is the current price.
• CPI = ΣWR ÷ ΣW. This is a weighted average of price relatives, where W is each item's budget share.
• Worked example (Class 11, Index Numbers, Q18):
• Given: CPI = 125, food index = 120, index for all other items = 135. Let food's weight be w.
• 120w + 135(1 − w) = 125 → 135 − 15w = 125 → w = 2/3

• So food carries about 66.7% of a worker's basket.

• Lesson for CPI-RL: a labourer's basket is heavy with food.

• Food prices go up (for example after a bad onion or pulses crop).
• CPI-RL goes up sharply.
• Real wages (wages after adjusting for prices) fall unless the minimum wage is revised.

What makes it rise or fall

• It rises with food prices most of all, because food has the largest weight in the basket.
• Fuel, clothing and other rural necessities also move it.
• Retail prices = wholesale prices + traders' margins + transport costs. So CPI-RL can move differently from the WPI.

In India

• Compiler: the Labour Bureau, Ministry of Labour and Employment. The Labour Bureau also compiles CPI-IW and CPI-AL.
• Base revision: from 1986-87=100 to 2019=100, in effect from the June 2025 index [5]. NCERT still uses 1986-87=100.
• Main use: revising rural minimum wages. CPI-AL is used for minimum wages in agriculture.
• Inflation from CPI-RL is the year-on-year % change, the same as for any CPI:
• Inflation (%) = (Iₜ − Iₜ₋₁₂) ÷ Iₜ₋₁₂ × 100

• Iₜ is this month's index and Iₜ₋₁₂ is the same month last year.

• Where it sits in the CPI family:

Index	Compiler	Covers	Base (current)
CPI-IW	Labour Bureau	Industrial workers	2016=100 [4]
CPI-AL	Labour Bureau	Agricultural labourers	2019=100 [5]
CPI-RL	Labour Bureau	Rural labourers (farm + non-farm)	2019=100 [5]
CPI-Rural / Urban / Combined	NSO (MoSPI)	All rural / urban households	2024=100 [3]

Don't confuse with

• CPI-AL: covers only agricultural labourers. CPI-RL covers both agricultural and non-agricultural rural labourers. Both have the same compiler (Labour Bureau) and the same new base (2019=100) [5].
• CPI-Rural: compiled by the NSO (MoSPI) for all rural households, not just labourers. Its base is 2024=100 [3]. CPI-RL is a Labour Bureau index for one occupational group.
• CPI-IW: covers industrial workers and is used for Dearness Allowance (DA), an extra payment to government employees that makes up for rising prices. Its base is 2016=100 [4]. CPI-RL is used for rural minimum wages.
• CPI-Combined (CPI-C): the headline retail inflation measure and the RBI's target (4% ± 2%) [6]. CPI-RL is not the monetary policy target.

Prelims Hooks

• CPI-RL is compiled by the Labour Bureau, not the NSO. A common trap is to swap CPI-RL with the NSO's CPI-Rural.
• CPI-RL/CPI-AL base = 2019=100, in effect from the June 2025 index. The old base was 1986-87=100 [5].
• CPI-RL covers agricultural + non-agricultural rural labourers. CPI-AL covers only agricultural labourers.
• Uses: CPI-RL → rural minimum wages. CPI-AL → agricultural minimum wages. CPI-IW → DA. CPI-C → RBI's inflation target.
• Index number logic: fixed base-year basket (Laspeyres-type). NCERT family budget method: CPI = ΣWR ÷ ΣW.
• NCERT figure: CPI-RL (1986-87=100) = 878 in May 2017.

Mains Points

• Wage indexation and fairness (GS-II/GS-III):
• A labourer's basket is mostly food, so a general index can understate their cost of living.
• A group-specific index like CPI-RL makes rural minimum wage revisions fairer.

• Keeping wages linked to CPI-RL protects real wages, which supports rural demand and helps reduce poverty.

• Old base years distort the picture:

• A base of 1986-87 used spending patterns that were over three decades old.
• Moving to 2019=100 [5] brings the basket closer to what rural workers buy today.

• The different bases across indices (2016 for CPI-IW, 2019 for CPI-AL/RL, 2024 for CPI-R/U/C) still make comparison hard. Aligning Labour Bureau indices with MoSPI's regular 3–5 year rebasing tied to HCES [2] is the reform direction.

• Food shocks and rural distress:

• Supply-side food inflation hits CPI-RL hardest.
• The RBI's interest-rate tools cannot fix a crop shortfall.
• So the policy answer is supply-side: storage, buffer stocks and better rural markets, together with timely revision of minimum wages.

Related concepts

• Consumer Price Index
• Basket of commodities
• Retail prices
• CPI for Industrial Workers
• CPI for Agricultural Labourers
• CPI for urban non-manual employees
• CPI-Rural and CPI-Urban
• CPI-Combined
• Consumer Food Price Index

Read more

• The consumer price index family in India