India wholesale inflation at 9.68% in May 2026 as fuel jumps

A near-double-digit WPI print under the new series

India’s wholesale price index (WPI) inflation rose to 9.68% year-on-year in May, according to government data released on Monday. The May reading was the first print under the revised WPI series with 2022-23 as the base year, replacing the earlier 2011-12 base. The rise came after April’s WPI inflation print of 8.26% year-on-year, although some reports also cited 8.30% for April. The move keeps wholesale inflation on a steep upward track after April’s sharp spike under the earlier series framework. Higher costs across fuel, food and manufactured items were identified as key drivers. The data arrived amid elevated global energy prices linked to disruptions and supply concerns in West Asia.

What changed: revised WPI base year and classification

The Commerce and Industry Ministry released the latest data under a new base year that aims to reflect more recent production and consumption patterns. A base-year revision changes weights and reference points, so month-to-month comparisons are still meaningful but should be read with care during the transition. Even with that caveat, the key message from May’s print was clear: input costs remained high across energy-linked categories. The reporting also coincided with continued uncertainty in shipping routes and crude supply lines. Market participants typically track WPI as an upstream indicator because it can signal cost pressures that may feed into retail prices with a lag.

Fuel and power stays the biggest driver

Fuel and power inflation accelerated to 30.33% in May from 24.89% in April. The surge reflected a period of elevated crude prices during much of the month, amid supply concerns stemming from tensions in West Asia and disruption risks around the Strait of Hormuz. Crude petroleum was highlighted as a major contributor, with inflation in that segment at 61.51% in May compared with 56.31% in April. The fuel shock has been sharp in recent months: the fuel and power category had jumped to 24.71% in April from 1.05% in March as energy markets reacted to the prolonged conflict in West Asia. While oil prices moderated in recent days following a US-Iran ceasefire agreement, May’s data still reflected the earlier price spikes.

Food inflation firms up at the wholesale level

Food inflation at the wholesale level also increased, with wholesale food prices at 4.49% in May versus 3.11% in April. Another ministry classification showed food article inflation rising to 3.60% from 2.43% over the same period, indicating broad-based pressure across key agricultural commodities. Inflation in primary articles, which includes food items, minerals and non-food articles, rose to 4.99% from 3.78% in April. The narrative in the data was that higher energy costs were filtering through supply chains, adding to pricing pressure on items that are sensitive to transport and fertiliser-linked costs.

Manufacturing costs also add to the pipeline pressure

Alongside food and fuel, higher manufacturing costs were cited as part of the inflation impulse in May. With fuel and power inflation above 30%, energy-intensive manufacturing segments typically see higher input costs, particularly when logistics becomes more expensive. The May print suggested that the rise was not limited to a single category, but spread across multiple components of the index. That matters because broad-based WPI pressure can influence pricing decisions across industries, especially where margins are thin and pass-through is quicker.

Key numbers at a glance

Retail inflation: CPI also moves up in May

Separate government data showed India’s retail inflation rose to 3.93% in May, up from 3.5% in the previous month. Food inflation in the consumer basket increased to 4.78% in May from 4.20% in April, according to the same set of reports. Transport inflation rose to 1.75% in May from a 0.01% decline in April, reflecting pass-through from higher retail fuel prices. The reports also noted that state-owned fuel retailers raised prices four times in May, and that petrol and diesel prices increased by Rs 7.50 per litre during the latter half of the month.

RBI context: inflation target and revised forecast

While WPI is not the RBI’s primary target variable, the central bank monitors pipeline inflation because it can affect future consumer inflation. The RBI is tasked with maintaining headline inflation at 4%, with a tolerance band of 2 percentage points on either side. Earlier this month, the central bank raised its inflation forecast for the current financial year to 5.1% from 4.6%, citing rising input costs and the transmission of elevated global energy prices into domestic fuel rates. The combination of higher WPI and rising CPI components linked to food and transport underscores the sensitivity of inflation to global energy moves.

Why the May WPI print matters for markets

A higher WPI print is closely watched by equity and bond investors because it signals cost pressures that can compress corporate margins if firms cannot pass them through. The fuel and power surge also has economy-wide implications as energy costs affect freight, manufacturing and farm inputs. At the same time, the moderation in oil prices after the reported US-Iran ceasefire agreement is relevant because it may shape the direction of input costs beyond May, even though the May data itself captured the earlier spike. For households, the CPI details on food and transport show that fuel-driven effects were already visible in retail prices during May.

Conclusion

India’s May wholesale inflation rose to 9.68% under the new WPI base year series, led by a sharp rise in fuel and power inflation to 30.33% and firmer wholesale food inflation at 4.49%. The data points to broad-based input cost pressure linked to elevated crude prices and supply chain strain during the month. Investors will track upcoming inflation prints and policy commentary, especially after the RBI raised its inflation forecast for the year to 5.1% from 4.6%.