Inflation in India
Types, Measurement & Control
CPI vs WPI · CPI base 2024 rebasing · Inflation targeting framework · RBI’s repo rate journey · Causes & types · Effects on the poor — complete chapter with latest 2025-26 data.
🎯 Relevant For: UPSC CSERBI Grade BNABARD Grade AState PSCCUET PGUGC NETIESIIT JAM
🎯 What You Will Learn
- Define inflation, deflation, disinflation, stagflation with precision
- Distinguish CPI vs WPI — who compiles, base years, weights, scope
- Understand the landmark CPI base year revision: 2012→2024 (Feb 2026)
- Analyse India’s Flexible Inflation Targeting (FIT) framework & MPC
- Trace RBI’s repo rate journey (4%→6.5%→5.25%) and its impact on inflation
- Classify demand-pull vs cost-push inflation with India examples
- Evaluate all types: creeping, walking, galloping, hyperinflation, headline, core
- Assess the distributional impact of inflation on different income groups
In June 2022, India’s CPI inflation hit 7.44% — breaching the RBI’s 6% upper tolerance band for three consecutive quarters, forcing an emergency off-cycle MPC meeting. The RBI hiked the repo rate from 4% to 6.5% in just 9 months — the sharpest tightening cycle in decades. By July 2025, CPI inflation had fallen to 1.6% — an 8-year low, driven by a record 9-month consecutive decline in food prices. The RBI then reversed course — cutting rates from 6.5% to 5.25% by December 2025.
Simultaneously, India made a landmark methodological change: on 12 February 2026, the CPI base year was updated from 2012=100 to 2024=100 — the most significant revision in a decade. Food’s weight in CPI was cut from 45.86% to 36.75%. Housing’s weight nearly doubled to 17.66%. This changes how India measures and interprets inflation going forward.
Inflation — Core Definitions
A sustained, generalised rise in the price level of goods and services over time, resulting in a fall in the purchasing power of money. Inflation rate = percentage change in a price index (usually CPI) over a reference period (usually year-on-year). Moderate inflation (2–4%) is generally considered healthy — it encourages spending and investment rather than holding cash. Formula: Inflation Rate = [(Price Indexcurrent – Price Indexbase) / Price Indexbase] × 100
Headline Inflation
Total CPI inflation including all components — food, fuel, housing, transport, health, and core goods. This is India’s main measure and the RBI’s inflation target. Highly volatile because food (36.75% of CPI under new basket) and fuel prices fluctuate sharply.
Core Inflation
Headline inflation minus food and fuel. Removes the volatile components to reveal underlying demand-driven price trends. More useful for monetary policy decisions because food/fuel inflation is supply-side and less responsive to interest rate changes.
Disinflation
A slowing rate of inflation — prices still rising but more slowly than before. NOT the same as deflation. Example: India’s inflation falling from 6.8% (FY23) to 4.6% (FY24) to 2.1% (June 2025) = disinflation. Prices were still rising, just more slowly.
Deflation
A sustained fall in the general price level — negative inflation rate. Dangerous: defers consumption (why buy today if cheaper tomorrow?), increases real debt burden, can trigger a deflationary spiral. Food deflation in India (June–Oct 2025) was sector-specific, not overall deflation.
Stagflation
The worst economic scenario: high inflation + high unemployment + stagnant growth simultaneously. Contradicts the traditional Phillips Curve (which says inflation and unemployment move in opposite directions). India’s worst episode: 2011-14 (high inflation + slowing growth). Global: 1970s oil shock stagflation.
Hyperinflation
Extremely rapid, out-of-control inflation — typically >50% per month. Destroys monetary system. Historical examples: Germany (1923), Zimbabwe (2008), Venezuela (2018). India has never experienced hyperinflation. Used in theory questions.
| Type | Rate | Nature | India Context |
|---|---|---|---|
| Creeping Inflation | <3%/year | Mild, manageable, generally beneficial — encourages investment | India’s current situation (FY26): CPI ~1.7-3.2% — historically low |
| Walking (Moderate) Inflation | 3–6%/year | Tolerable; caution needed if persistent | India’s target range (2–6%); FY24: 4.6% average |
| Galloping Inflation | 6–20%/year | Serious; erodes savings; disrupts planning | India FY2022-23 peak: ~7.44% (June 2022) — triggered RBI tightening |
| Hyperinflation | >50%/month | System collapse; barter re-emerges | India has never experienced; Venezuela (2018), Zimbabwe (2008) |
Consumer Price Index (CPI) — India’s Inflation Thermometer
A measure of the average change in the retail prices of a fixed basket of goods and services consumed by representative households. In India, CPI is the primary measure of inflation and the target metric for the RBI’s Flexible Inflation Targeting framework. Published monthly by NSO (National Statistical Office) under MoSPI. Three series: CPI-Rural, CPI-Urban, and CPI-Combined (All-India).
🆕 LANDMARK: CPI Base Year Updated — 2012 → 2024 (12 February 2026)
December 2025 was the LAST release of CPI on base year 2012=100. From 12 February 2026, India switched to a new CPI series with base year 2024=100. Key changes: (1) Food & Beverages weight cut from 45.86% to 36.75% — reflecting that Indians spend less share of income on food as they get richer (Engel’s Law). (2) Housing weight nearly doubled from 10.07% to 17.66%. (3) Structure expanded from 6 groups/23 sub-groups to 12 divisions/43 groups/92 classes/162 sub-classes (COICOP-aligned). (4) Coverage expanded: 1,465 rural villages (up from 1,181) and 1,395 urban markets (up from 1,114). (5) Weights drawn from HCES 2023-24 (Household Consumption Expenditure Survey). MoSPI also moved to CAPI (Computer Assisted Personal Interviewing) for data collection. (Sources: MoSPI PIB, Feb 2026; Vajiramandiravi.com, Jan 2026)
📊 CPI Basket Composition — Old (2012) vs New (2024)
🔵 Old CPI (Base 2012=100) — Till Dec 2025
- Food & Beverages: 45.86% — nearly half the basket
- Miscellaneous: 28.32%
- Housing: 10.07% (urban only)
- Fuel & Light: 6.84%
- Clothing & Footwear: 6.53%
- Pan, Tobacco, Intoxicants: 2.38%
- 6 groups, 23 sub-groups; base from 2011-12 NSSO data
- Last release: December 2025
🟢 New CPI (Base 2024=100) — From Feb 2026
- Food & Beverages: 36.75% — reduced share
- Housing & Utilities: 17.66% — nearly doubled
- Transport & Communication: 12.41%
- Health: 6.10%
- Clothing & Footwear: 6%
- Restaurants & Accommodation: 3.35% (NEW category)
- 12 COICOP divisions; based on HCES 2023-24
- First release: 12 February 2026
📊 CPI Basket Visual — New Weights (Base 2024=100)
(was 45.86%)
(was 10.07%)
(NEW)
Lower food weight means headline CPI becomes less volatile — seasonal food price spikes (pulses, tomatoes, onions) will have smaller impact on headline inflation. But higher housing weight (17.66%) means housing inflation will exert more upward pressure on headline CPI. For RBI’s MPC: under old series, food inflation frequently forced RBI to hold rates high even when core inflation was low. New series gives MPC more room to look through food volatility. SBI Research estimates: CPI under new weights would be 20-30 bps higher in low-food-inflation periods, and 20-30 bps lower in high-food-inflation periods.
Wholesale Price Index (WPI) — The Producer-Side Measure
Measures the average change in prices of goods at the wholesale/producer level — bulk transactions between businesses, before reaching consumers. WPI does NOT cover services (unlike CPI). Published by the Office of the Economic Adviser (OEA) under DPIIT (Ministry of Commerce & Industry). Base year currently: 2011-12 (revision to 2022-23 in progress, with roadmap to switch to PPI — Producer Price Index).
| Feature | CPI (Consumer Price Index) | WPI (Wholesale Price Index) |
|---|---|---|
| What it measures | Retail prices paid by final consumers | Wholesale/producer prices in bulk transactions |
| Compiled by | NSO / MoSPI | OEA / DPIIT (Ministry of Commerce) |
| Base year (current) | 2024=100 (from Feb 2026); was 2012=100 | 2011-12=100 (revision to 2022-23 in progress) |
| Services included? | YES — health, education, transport, rent | NO — only goods |
| Inflation targeting? | YES — RBI targets CPI under FIT framework | NO — WPI not a policy target |
| Main components | Food (36.75%), Housing (17.66%), Transport (12.41%), Health (6.1%) | Manufactured products (~64%), Primary articles (~22%), Fuel & Power (~13%) |
| Price level | Retail — includes distribution margins, taxes, dealer profits | Wholesale — typically lower than CPI; no retail markup |
| Policy use | Monetary policy (RBI), wage indexation, government dearness allowance | Industrial cost analysis, business planning, GDP deflator inputs |
| Leading/Lagging | Lagging indicator — reflects what consumers pay after distribution | Leading indicator — WPI rise signals future CPI rise (transmission lag ~3-6 months) |
India plans to switch from WPI (Wholesale Price Index) to PPI (Producer Price Index) — aligning with international best practices (most advanced economies use PPI, not WPI). The government has formed a Working Group to revise WPI base from 2011-12 to 2022-23 and recommend a roadmap for transitioning to PPI. PPI measures prices received by producers for their output — closer conceptually to a GDP deflator. This is a major upcoming methodological reform. (Clarity UPSC, Feb 2026)
For about 18 months (2021-2022), WPI inflation ran significantly higher than CPI inflation — unusual since WPI is normally the “leading indicator” that feeds into CPI. WPI peaked at ~16% while CPI stayed around 6-7%. The reason: Wholesalers absorbed the rising input costs (metals, chemicals, fuel post-COVID supply chain disruptions) and did NOT pass them on to retailers and consumers. This “absorption” compressed their margins. As the supply chain disruptions eased, WPI collapsed sharply (even going negative in 2023) while CPI remained sticky. This divergence had important implications: it meant CPI (the policy target) remained below its upper band even when producers were under severe cost pressure. (PRS India analysis)
Causes of Inflation — Demand-Pull vs Cost-Push
🔴 Demand-Pull Inflation
“Too much money chasing too few goods”
- Excess consumer demand exceeds supply → prices rise
- Causes: high government spending, loose monetary policy (low interest rates), rising incomes, strong exports
- India example (2010-13): high fiscal deficit + loose monetary policy → persistent 8-10% inflation
- RBI’s repo rate hikes address this directly — higher rates reduce borrowing → less spending → lower demand pressure
- Phillips Curve: inverse relationship between unemployment and demand-pull inflation
🔵 Cost-Push Inflation
“Supply side shocks raise costs”
- Rising production costs passed on as higher prices → NOT caused by excess demand
- Causes: crude oil price spikes (India imports 80% oil), food supply shocks (drought, floods), global commodity price surges, weakened rupee (imported inflation), supply chain disruptions
- India example (2022-23): Ukraine war → oil/commodity price spike → cost-push inflation
- Monetary policy is less effective here — rate hikes can’t fix oil price shocks or drought-damaged crops
- Supply-side policy more appropriate: buffer stocks, import flexibility, price stabilisation
| Cause | How It Creates Inflation | Examples / Data |
|---|---|---|
| Supply-side bottlenecks | Poor storage, cold chain, roads → 30-40% post-harvest losses in F&V; seasonal shortages drive price spikes | Tomato ₹200/kg (2023); Onion crisis (2019): ₹100+/kg |
| Monsoon dependence | 45% of farmland un-irrigated; poor monsoon → crop failure → food price surge | 2023 El Niño: pulses inflation reached 20%+ |
| MSP-linked procurement | Rising MSP for wheat/rice → government procurement pushes up market prices for those crops | MSP for arhar up 59%, bajra up 77% (FY25) → arhar market prices follow |
| Intermediary margins | Multiple layers of middlemen between farmer and consumer; each adding margins; farmer gets 15-30% of retail price | e-NAM aims to reduce; still systemic problem |
| Imported inflation | Rupee depreciation makes imports more expensive; edible oil, pulses imports, crude oil — all pass through to food and fuel prices | Rupee depreciation of ~5%/year = 0.5-1% imported inflation |
| Climate change | Increasing frequency of floods, droughts, and heat waves disrupting agricultural supply | March 2022 heatwave: 10-35% wheat yield loss; 2024 unseasonal rains |
Flexible Inflation Targeting (FIT) — India’s Monetary Policy Framework
India adopted FIT in 2016 under an amendment to the RBI Act, 1934. Key features: Target: CPI headline inflation at 4%. Tolerance band: ±2% (i.e., 2% to 6%). Failure clause: inflation outside band for three consecutive quarters = “failure” — RBI must submit a report to the government explaining reasons and remedial actions. MPC (Monetary Policy Committee): 6-member body (3 RBI + 3 government nominees) that decides the repo rate. Decisions by majority vote; RBI Governor has casting vote. Framework renewed for five more years: April 2026 to March 2031. (Trading Economics, Nov 2025; PIB July 2025)
| Aspect | Details |
|---|---|
| Established | 2016 — RBI Act amendment (Monetary Policy Committee) |
| Composition | 6 members: RBI Governor (Chair) + 2 RBI Deputy Governors/officers + 3 external members appointed by Government of India |
| Meetings | At least 4 times per year (typically 6 bi-monthly meetings); can hold off-cycle meetings for emergencies (did so in 2022) |
| Decision mechanism | Simple majority vote; RBI Governor has casting vote in case of tie |
| Main policy tool | Repo Rate: rate at which RBI lends short-term to commercial banks; changes repo rate → changes bank lending rates → affects credit, spending, and inflation |
| Repo rate journey | Pre-COVID: 5.15% → COVID cut (Mar 2020): 4.0% → Inflation hike cycle (May 2022–Feb 2023): +250 bps to 6.5% → Held at 6.5% (Feb 2023–Jan 2025) → Rate cut cycle (Feb 2025 onwards): cut to 5.25% by Dec 2025 |
| Current stance (FY26) | Repo rate: 5.25% with neutral stance (as of December 2025 / PRS Oct 2025); signals balanced approach supporting growth while maintaining inflation vigilance |
| Failure condition | CPI outside 2–6% band for 3 consecutive quarters → RBI must report to government (happened in 2022: Jan–Sep 2022 above 6%) |
RBI raises Repo Rate → Commercial banks’ cost of borrowing from RBI rises → Banks raise lending rates (home loans, auto loans, business loans) → Households borrow less → Consumer spending falls → Demand reduces → Prices stabilise / fall. This is the monetary transmission mechanism. In India, transmission is imperfect and slow — it takes 6-18 months for a repo rate change to fully feed through to lending rates and then to inflation. This lag means RBI must act preemptively using forecasts. Also, cost-push inflation (food, oil) doesn’t respond to rate hikes — you can’t hike rates to make it rain or stop oil wars.
India’s Inflation Journey — Latest Data (2022–2026)
📊 India’s Inflation Scorecard — 2024-25 to 2025-26
| Period | CPI Level | Key Driver | RBI Response |
|---|---|---|---|
| FY2020-21 (COVID) | 6.2% — high due to supply disruptions | Supply chain breakdown; food shortages; base effects | Repo rate CUT from 5.15% to 4.0% (to support economy) |
| FY2021-22 | 5.5% — moderating | Post-COVID recovery demand; global commodity prices rising | Held at 4% — accommodative stance to support recovery |
| FY2022-23 (Peak) | 6.7% avg; peak 7.44% (Jun 2022) | Ukraine war → oil/commodity surge → cost-push; rupee depreciation; global food inflation | Emergency off-cycle MPC meeting; Repo rate hiked 250 bps: 4%→6.5% (May 2022–Feb 2023) |
| FY2023-24 | 5.4% avg — gradual decline | Rate hikes working; base effect; some food relief | Held at 6.5%; stance changed from “withdrawal of accommodation” to “neutral” |
| FY2024-25 | 4.6% avg — 6-year low | Good monsoon; record agri production; food price relief; base effect | First cut in Feb 2025 (25 bps to 6.25%); further cuts to 5.5% by July 2025 |
| FY2025-26 (ongoing) | ~1.7% Q2; all-time low 0.25% Oct 2025 | Prolonged 9-month food price DECLINE (-5.02% food in Oct 2025); GST rate rationalisation (Sep 2025) | Repo cut to 5.25% (Dec 2025); neutral stance; RBI revised GDP growth forecast UP to 7.3% |
Effects of Inflation — Winners, Losers & Economic Impact
| Group | Effect of Inflation | Reason | India-Specific Context |
|---|---|---|---|
| 🏚️ Poor / Fixed Income Earners | WORST affected | Food is 40-60% of poor household budget; wages don’t rise as fast as food prices; savings eroded | India’s poor spend 50-60% of income on food (HCES data); food inflation disproportionately hurts them |
| 👴 Savers (bank deposits, fixed instruments) | Hurt — real returns fall | If inflation = 6% and bank FD = 5%, real return = -1% | India’s household savings decline partly driven by negative real returns during high-inflation periods |
| 🏦 Debtors (Borrowers) | BENEFIT — real debt burden falls | Repay loans in depreciated money; fixed EMI worth less in real terms | Farmers and home loan borrowers benefit; government benefits from inflation “taxing” nominal debt |
| 💰 Creditors (Lenders) | Hurt — real value of loan repayments falls | Receive money with lower purchasing power | Fixed-income investors, retirees on pension particularly hurt |
| 🏭 Producers / Businesspeople | Mixed — benefit if prices rise faster than costs | Can raise prices while wages lag → higher profit margins temporarily | India corporates had record profits in 2022-23 even during high inflation (Billionaire Raj context) |
| 🏛️ Government | Benefit — tax revenue rises in nominal terms; debt burden shrinks | Inflation tax: government’s nominal debt becomes smaller as prices rise | India: nominal GST, income tax revenues rise with inflation; central debt sustainable partly due to inflation |
| 🌍 Export Sector | Hurt — domestic inflation makes exports less competitive | If Indian prices rise faster than trading partners’, exports become expensive globally | RBI manages exchange rate partly to maintain export competitiveness |
Economists often call inflation a “regressive tax” — it hurts the poor more than the rich. Poor households spend a larger share of income on food (50-60%) and cannot protect themselves against inflation through financial instruments (stocks, gold, real estate). The rich can hold inflation-hedging assets. India’s CPI food weight of 36.75% (new basket) — but the effective food weight for rural poor is closer to 50-55% (HCES data). This is why food inflation is politically explosive in India — it directly impacts voter welfare and triggers agrarian protests and policy responses like export bans on rice and wheat.
Measures to Control Inflation
| Type | Tool | How It Works | Used in India When? |
|---|---|---|---|
| Monetary Policy (RBI / MPC) |
Repo Rate Hike | Raises borrowing costs → reduces credit → reduces spending → lower demand → lower inflation | 2022-23: 250 bps hike (4%→6.5%) to fight post-Ukraine inflation |
| CRR (Cash Reserve Ratio) Increase | Banks must keep more cash with RBI → less money available to lend → credit tightening → lower demand | Used alongside repo hikes; RBI cut CRR to 3% in FY25-26 to ease liquidity | |
| OMO — Open Market Operations | RBI sells government securities → banks buy → money drained from system → reduces money supply | Used to manage liquidity alongside rate decisions | |
| SDF (Standing Deposit Facility) | Replaces reverse repo; RBI absorbs excess bank liquidity at a rate lower than repo → reduces money in system | Introduced 2022 as corridor floor; currently SDF = Repo – 25 bps | |
| MSF (Marginal Standing Facility) | Emergency borrowing by banks from RBI at penalty rate (Repo +25 bps); limits excessive bank credit | Used when banks face acute liquidity crunch | |
| Fiscal Policy (Government) |
Reduced Government Spending | Lower fiscal deficit → less government-injected demand → lower demand-pull inflation | India’s fiscal consolidation targets post-COVID (5.6%→4.4% deficit) |
| Tax Increases | Higher taxes reduce disposable income → lower consumer spending → lower demand inflation | GST rate adjustments; excise on fuel reduced Nov 2021 to ease fuel-price inflation | |
| Export Bans / Import Reduction | Ban food exports (rice ban 2023) → more domestic supply → lower food prices; reduce import duties on essential items | India banned rice exports (Aug 2023) when domestic rice prices spiked; reduced pulses import duty | |
| Supply-Side Measures (Government) |
Buffer Stock Release (FCI) | Release wheat/rice from government buffer stocks into open market → increases supply → reduces prices | FCI releases buffer stocks during high food inflation; OMSS (Open Market Sale Scheme) |
| Price Stabilisation Fund | Government purchases pulses and oilseeds at lower prices, stores, and releases when prices spike | Price Stabilisation Fund (PSF) used for onion, potato, pulses management | |
| Agricultural Investment | Improve productivity, irrigation, cold chain → reduce structural food supply gaps → lower long-run food inflation | PMKSY irrigation, AIF cold chain, e-NAM — long-run supply-side approach |
⚠️ Common Exam Mistakes
💡 Chapter 14 — Key Takeaways
- 1Inflation = sustained rise in general price level. Disinflation = inflation slowing. Deflation = prices falling. Stagflation = high inflation + high unemployment. India’s current situation (FY26): creeping/low inflation (1-3%), well within RBI target.
- 2CPI (compiled by NSO/MoSPI) = retail prices; used for RBI inflation targeting. WPI (compiled by OEA/DPIIT) = wholesale prices; not targeted by RBI; covers only goods. India switched from WPI to CPI as monetary policy anchor in 2013.
- 3LANDMARK: CPI base year updated from 2012=100 to 2024=100 from 12 February 2026. Food weight: 45.86% → 36.75%. Housing: 10.07% → 17.66%. New “Restaurants & Accommodation” category (3.35%) added. Weights from HCES 2023-24.
- 4Flexible Inflation Targeting (FIT): 4% CPI target ±2% (2–6% band). 6-member MPC (3 RBI + 3 govt). Failure = 3 consecutive quarters outside band. Framework renewed for April 2026–March 2031. WPI → PPI transition planned.
- 5RBI repo rate journey: Pre-COVID 5.15% → COVID cut to 4.0% → Post-Ukraine hike to 6.5% (250 bps in 9 months, 2022-23) → Held at 6.5% till Jan 2025 → Cut cycle to 5.25% (100 bps cut, Feb–Dec 2025).
- 6CPI avg: FY23 = 6.7% → FY24 = 5.4% → FY25 = 4.6% (6-yr low). Q2 FY26 = 1.7%. All-time low = 0.25% (Oct 2025). Food deflation (-5.02%) led the decline. Jan 2026 (new series): 2.75%.
- 7India’s inflation is predominantly supply-side/food-driven. Structural causes: poor storage, monsoon dependence, intermediary margins, import dependence (oil 80%). Monetary policy less effective for supply-side inflation — need supply-side interventions.
- 8Inflation is regressive — hurts the poor most (food = 50-60% of poor household budget). Debtors gain, creditors lose. Government gains (nominal tax revenue rises, real debt burden falls). Key control tools: Repo rate, CRR, OMO, export bans, buffer stocks, PSF.
⚡ Rapid Recall — Exam MCQ Facts
🎯 Chapter 14 Assessment — Inflation in India
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