EconomySeptember WPI inflation rises to 11.39% as India also publishes trial producer-price indices
Wholesale inflation accelerated from 9.92% in August, while the official release continued trial dissemination of output and input producer-price measures with a 2022-23 base.
THE INDIQA Research DeskPublished 15 Oct 2026Updated 30 Oct 20261 min read
India's Wholesale Price Index recorded year-on-year inflation of 11.39% in September 2026, up from 9.92% in August. Primary Articles inflation was 8.67%, Fuel and Power 25.85%, and Manufactured Products 9.76%, showing broad price pressure across major WPI groups.
The statistics release also contains trial Output Producer Price Index and Input Producer Price Index series based on 2022-23. Producer-price measures are intended to capture prices received by producers and input costs more directly, but trial dissemination should not be confused with a completed replacement of the established WPI framework.
For civil-services preparation, WPI differs from CPI in coverage, weights and economic meaning. Wholesale/producer prices can transmit to consumer inflation with lags and incomplete pass-through, while fuel and commodity shocks can affect sectors unevenly. Policy analysis should therefore compare multiple price indicators rather than treating one index as the whole inflation picture.
CIVIL SERVICES VIEWStudy this development
GS-IIIInflation; price indices; statistical systemsPrelims: HighMains: HighAdvanced
Why this matters
September 2026 WPI inflation rose to 11.39%, while trial output and input PPI series continued to be published.
Key facts
- September WPI inflation: 11.39%.
- August WPI inflation: 9.92%.
- Fuel and Power inflation: 25.85%.
- Trial PPI series use 2022-23 as base.
Key terms
- WPI
- PPI
- CPI
- producer prices
- 2022-23 base
Arguments, challenges and policy responses
- WPI-CPI divergence
- Commodity and fuel pass-through
- Modernising price statistics
India’s context
Price indices shape inflation analysis, business costs and the interpretation of macroeconomic conditions in India.
Keep in mind
A trial PPI release does not mean WPI has already been abolished or formally replaced.
Practice question
Why can wholesale and consumer inflation diverge, and what additional information can producer-price indices provide?
Revision summary
- WPI inflation accelerated to 11.39%.
- Trial PPI series should not be treated as formal WPI replacement.
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