Wholesale Inflation Surges to 9.68% in May 2026

India's wholesale inflation, measured by the Wholesale Price Index (WPI), jumped to 9.68% in May 2026 from 8.26% in April 2026. This is a series high. The sharp rise was driven mainly by costlier fuel, crude petroleum, and manufactured chemicals and metal products. The May figure is the first reading under a new WPI series that uses 2022-23 as its base year, replacing the older 2011-12 base. Under the new series, the number of items tracked has gone up from 697 to 957, and new energy sources like solar, wind and nuclear electricity have been added.

Energy was the biggest pressure point. Year-on-year inflation in the Fuel and Power group stood at 30.33% in May, up from 24.89% in April. Within this, crude petroleum and natural gas inflation hit 61.51% in May (against 56.31% in April and 26.13% in March), while mineral oils were at 49.82%. Inflation in Primary Articles was 4.99% and in Manufactured Products 7.48%. Among manufactured goods, chemicals rose 13.40%, basic metals 12.30%, electrical equipment 11.32% and textiles 10.22%.

It is useful to understand how WPI differs from the Consumer Price Index (CPI). WPI tracks prices at the wholesale or factory-gate level, before goods reach the final shopper, and it gives a heavy weight to fuel, metals and manufactured goods. CPI tracks the prices that ordinary households actually pay and gives a big weight to food and services. This is why the two can move very differently. In May 2026, even as WPI touched 9.68%, retail (CPI) inflation was only 3.93%, still below the Reserve Bank's 4% target.

The gap exists because energy and industrial input costs surged during the West Asia conflict, hitting wholesale prices hard, while many everyday consumer items stayed cheap. Wholesale price rises often take time to pass through to retail prices, and businesses may absorb part of the increase for a while.

Economists expect some relief in the June 2026 WPI reading, as global energy and commodity prices have cooled following the easing of tensions in West Asia. However, they warned that a weak monsoon remains a near-term risk, especially for pulses and oilseeds, and it is unclear whether energy-heavy industries like chemicals and textiles will pass on any savings to buyers.