India Launches Producer Price Index; WPI to Be Phased Out in Five Years

India has officially entered a new era of inflation monitoring with the first-ever release of the Producer Price Index (PPI) for goods and services. This landmark move signals the beginning of a five-year transition period during which the long-standing Wholesale Price Index (WPI) will be gradually phased out to align with global economic standards.

A Strategic Shift Towards Global Standards

The transition from WPI to PPI follows recommendations from the International Monetary Fund (IMF) and aligns India with the practices of advanced economies. For decades, WPI has been the primary gauge for wholesale inflation, but the government is now shifting toward a more comprehensive framework.

Unlike the WPI, the PPI offers a dual-layered perspective by providing both Output and Input indices. This distinction allows policymakers and businesses to understand how price fluctuations in raw materials (inputs) are passed through to the final goods produced (outputs). This granular data is expected to significantly enhance the accuracy of National Accounts and GDP compilation by providing a better measure of real value addition.

Decoding the Initial PPI Data

The Commerce and Industry Ministry released the first set of data alongside the May wholesale inflation figures. During this period, wholesale inflation rose to 9.68% from 8.26% in April. Correspondingly, the All-India Output PPI inflation saw a notable increase, rising to 9.4% from 8.1%.

Specific figures from the May 2026 release include:

The Input PPI is currently being published on an experimental basis to allow the government to assess data quality and gather essential feedback from industry stakeholders.

Structure and Weightage of the New Index

The new series uses a revised base year of 2022-23, covering 957 items. The composition of the Output PPI (Goods) differs significantly from the old WPI structure. While manufactured items remain the dominant component, the distribution of weights has been recalibrated:

The Service PPI is being introduced in phases. The first phase covers critical sectors including banking, securities, insurance, pension fund management, railways, air passenger transport, and telecom. Future phases will integrate the remaining service sectors using data from price surveys and the GSTN.

Key Takeaways