Base Year of Wholesale Price Index (WPI) Revised to 2022–23
The Government of India has approved the revision of the Wholesale Price Index (WPI) base year from 2011–12 to 2022–23. The revised WPI series and new Producer Price Indices (PPIs) will be released on 15 June 2026 by the Office of Economic Adviser, DPIIT.
The new WPI series includes several improvements, such as an increase in the number of items from 697 to 957, inclusion of solar, wind, and nuclear energy under the electricity category, and adoption of improved methodologies for weighting and price calculation.
Along with the revised WPI, the government will also introduce Output Producer Price Index (OPPI), Input Producer Price Index (IPPI), and Service Producer Price Index (PPI) for selected services. The move is aimed at aligning India’s price measurement system with global best practices and providing a more accurate picture of producer-level inflation.
Exam-Ready Facts
- Old WPI Base Year: 2011–12
- New WPI Base Year: 2022–23
- Release Date of Revised Series: 15 June 2026
- Releasing Agency: Office of Economic Adviser, DPIIT
- Number of WPI Items Increased: 697 → 957
- New Energy Sources Included: Solar, Wind, and Nuclear Energy
- New Indices Introduced: OPPI, IPPI, and Service PPI





























