PIB TrackerRetail inflation eases to 3.93% in May 2026 on the new 2024=100 CPI series
Headline CPI inflation came in at 3.93% and food inflation at 4.78% for May 2026 — the readings now computed on the revised base year 2024=100, which modernises India's inflation measurement.
What happened
- Retail inflation based on the Consumer Price Index (CPI) was 3.93% (provisional) year-on-year in May 2026 over May 2025 — with rural and urban inflation at 4.25% and 3.53% respectively.
- Food inflation (Consumer Food Price Index, CFPI) was 4.78% (rural 4.85%, urban 4.66%), while housing inflation was 2.12%.
- These figures are computed on the revised base year 2024=100, which replaces the earlier 2012=100 series — strengthening the measurement framework.
- The new series, released by NSO/MoSPI in February 2026, updates the item basket and weights using the Household Consumption Expenditure Survey (HCES) 2023-24, adopts the international COICOP 2018 classification, and for the first time incorporates e-commerce and administrative data.
- Items with low/negative inflation in May included potato (-23.71%) and peas; the Food & Beverages weight in the new series is 36.75% (down from 45.86%), and the number of weighted items rose from 299 to 358.
For Prelims
- CPI (Consumer Price Index): Measures retail inflation (the price change faced by consumers). Compiled by the National Statistical Office (NSO) under MoSPI. It is the inflation measure the RBI targets for monetary policy.
- Base year revision (2012 → 2024): The base year is reset to 2024=100 using the HCES 2023-24 to reflect current consumption patterns. Released Feb 2026; the food weight fell to 36.75% (from 45.86%), reflecting rising non-food/services spending.
- COICOP 2018: The UN's 'Classification of Individual Consumption According to Purpose' — adopted in the new CPI series for international comparability, replacing the old six-group structure.
- CFPI (Consumer Food Price Index): The food-only sub-index of CPI; food is volatile, so CFPI often diverges from headline CPI.
- RBI inflation target: Under the flexible inflation targeting framework (RBI Act, amended 2016), the target is 4% CPI inflation (±2% band, i.e. 2-6%); the Monetary Policy Committee (MPC) sets the repo rate accordingly. May's 3.93% is within target.
- WPI vs CPI: The Wholesale Price Index (WPI) (Office of the Economic Adviser, DPIIT) measures wholesale/producer prices; CPI measures retail. The RBI targets CPI, not WPI.
- Don't confuse: Headline CPI (general) ≠ CFPI (food only); and the base-year revision changes the reference point and weights — it is a methodological update, not a one-off fall in prices.
For UPSC: May 2026 retail (CPI) inflation was 3.93% and food (CFPI) 4.78%, now on the revised base year 2024=100 (from 2012=100), which uses HCES 2023-24 weights, COICOP 2018 and e-commerce data, cutting the food weight to 36.75%. Anchor CPI/NSO/MoSPI, the RBI's 4%±2% inflation target and the MPC, the CPI-vs-WPI and CPI-vs-CFPI distinctions, and the significance of the base-year revision.
What it is NOT: The base-year revision (2012→2024) is a methodological update of weights and reference point — NOT itself a fall in prices. CPI (retail, NSO/MoSPI, RBI-targeted) is distinct from the WPI (wholesale, DPIIT); and headline CPI is not the same as the food-only CFPI.
For Mains
Syllabus: GS3.1 · GS3.3 · Linkage L2
Anchor
Inflation measurement and monetary policy — a modernised CPI base improving the accuracy of price-stability decisions.
Substantiation (data)
May 2026 CPI 3.93%, CFPI 4.78%, housing 2.12%; new base 2024=100 (HCES 2023-24, COICOP 2018, e-commerce data); food weight 36.75% vs 45.86%.
Exemplification
Cite the base revision as an example of statistical-system modernisation improving evidence-based policymaking and RBI inflation targeting.
Problematisation
Food-price volatility, divergence between rural/urban and CPI/WPI, and data lags complicate policy; weight changes can shift measured inflation.
Way-forward
Strengthen high-frequency price data (e-commerce/administrative), align statistical systems with international standards, and balance growth-inflation trade-offs.
Position
Government stance: a revised, robust CPI series (2024=100) makes inflation measurement more representative and supports credible monetary policy.
Deploys into: Inflation & monetary policy (RBI targeting, MPC) · statistical-system modernisation (CPI base revision) · price stability vs growth · CPI/WPI distinction (GS3.1 economy/growth, GS3.3 government budgeting & macro).
Ministry of Statistics & Programme Implementation · 2026-06-12 · PRID 2272112 · PIB source ↗