Wholesale Inflation Climbs to 9.68% in May Under New WPI Series

Context:

Recently, India’s Wholesale Price Index (WPI) based inflation accelerated to 9.68 per cent year-on-year in May under the newly released WPI series, compared with 8.26 per cent in April under the old series.

Key Drivers of Inflation Increase:

Geopolitical Shock

• • • • Ongoing energy crisis in West Asia and partial disruption in the Strait of Hormuz led to a global surge in crude oil and commodity prices.

Fuel and Power Inflation

• • • • Fuel and power inflation surged to 30.33% in May.
      • Crude oil and natural gas prices alone increased by 61.51%.

Cost-Push Inflation

• • • • Inflation in manufactured products rose from 6.68% to 7.48%.
      • Indicates rising input costs being passed to finished goods.

Food Inflation

• • • • WPI Food Index reached 4.49%, the highest in 16 months, increasing pressure on households.

What is the Wholesale Price Index (WPI)?

The Wholesale Price Index (WPI) measures changes in prices of goods traded at the wholesale level before reaching consumers.

Published by:

The Office of the Economic Adviser under DPIIT, Ministry of Commerce and Industry.

Importance:

• • • • Tracks producer-level inflation.
      • Acts as an indicator of supply-side price pressures.
      • Helps policymakers formulate monetary and fiscal responses.

Unlike the Consumer Price Index (CPI), WPI does not directly measure retail inflation faced by consumers.

Key Features of the New WPI Series:

Aligned with IMF guidelines and global statistical standards:

Base Year Revision

• • • • Revised from 2011–12 to 2022–23.

Expanded Basket

• • • • Items increased from 697 to 957, improving representation of the economy.

Classification Improvements

• • • • Crude oil and natural gas shifted to the Fuel & Power category for better accuracy.

Inclusion of Green Energy

• • • • Renewable energy sources such as solar, wind, and nuclear energy included for the first time.

Use of GVO

• • • • Weights now based on Gross Value of Output (GVO) instead of earlier valuation methods.

Significance of the New Framework:

• • • Better Policy Formulation: Provides policymakers with a comprehensive picture of price movements across goods and services.
    • Alignment with Global Practices: Follows recommendations of the International Monetary Fund (IMF) and international best practices adopted by advanced economies.
    • Improved Inflation Monitoring: Captures inflationary pressures at different stages of production, helping anticipate future consumer inflation.

Conclusion:

The rise in WPI inflation to 9.68% reflects persistent supply-side pressures, particularly from fuel prices. The revised WPI series strengthen India's inflation measurement framework, enabling more accurate and evidence-based policymaking.

What is the recent development in WPI inflation?

India’s Wholesale Price Index (WPI)-based inflation rose to 9.68% in May 2026, up from 8.26% in April 2026. This reflects rising supply-side cost pressures, especially in fuel and energy.

What is the Wholesale Price Index (WPI)?

The WPI measures price changes of goods at the wholesale level before they reach consumers.

• • • Published by: Office of the Economic Adviser, DPIIT
    • Type of inflation: Producer/supply-side inflation indicator
    • Excludes: Direct retail prices and most services

Why is WPI important?

• • • Tracks producer-level inflation trends
    • Indicates supply-side price pressures
    • Helps in monetary and fiscal policy formulation
    • Acts as an early signal for CPI inflation trends