June 16, 2026
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Wholesale Price Index revision with base year 2022-23 expands coverage, updates methodology, and introduces new producer price indices.
Wholesale Price Index and Producer Price Indices are being revised with base year 2022-23, replacing the existing WPI series with base year 2011-12. The revised framework introduces a larger commodity basket, updated grouping of energy items, revised weight derivation using Gross Value of Output for WPI, short-term formulation for elementary indices, and targeted mean imputation for missing prices. Output PPI, trial Input PPI, and Service PPIs are also introduced, with monthly, experimental, and quarterly release schedules, respectively, and back-series data made available on the official portal.