IIP 2022–23 series launches June 1: 1,042 products, new sub-indices
Synopsis
Key Takeaways
The Ministry of Statistics and Programme Implementation on Monday, 25 May released the full report of the Technical Advisory Committee on Base Year Revision of the All-India Index of Industrial Production (TAC-IIP), ahead of the official launch of the new IIP 2022–23 series on 1 June 2026. The report is intended to help data users understand and transition to the revised framework before the first figures go live.
What the New Series Covers
The first release under the new series will present index values from April 2023 onwards, including Quick Estimates for April 2026. Alongside the All-India General Index, the release will carry sector-wise indices for Mining and Quarrying, Manufacturing, Electricity and Gas Supply, and Water Supply, Sewerage and Waste Management.
Manufacturing sector indices will be available at the 2-digit level of NIC-2025, along with indices based on Use-based Classification and a linking factor.
Revised Item Basket and Weights
The ministry stated that the item basket has been comprehensively overhauled — outdated commodities removed and relevant ones added — to ensure each sector carries appropriate weight. The revised basket now comprises 1,042 products mapped to 463 item groups. The updated series is aligned with the National Industrial Classification (NIC-2025).
New Sub-Indices and Greater Granularity
A notable feature of the new series is its finer disaggregation. Electricity generation will now be tracked separately for renewable and non-renewable sources. The Mining and Quarrying sector is split into three sub-indices: Fuel Minerals, Metallic Minerals (including Rare Earth Minerals), and Non-Metallic Minerals (including Minor Minerals).
Methodological Enhancements
The new series introduces structural improvements to index compilation. Factories that have permanently closed or significantly altered their production lines will be substituted with comparable units. The panel of reporting factories will also be augmented by incorporating newly commissioned large-scale factories that begin producing relevant items during the currency of the series.
For linking the outgoing 2011–12 series with the new 2022–23 series, the Geometric Mean method will be used. Linking factors will be computed at aggregated levels — the General Index and the Sectoral Indices — according to the ministry.
What Comes Next
With the TAC-IIP report now public, stakeholders including industry bodies, researchers, and policymakers have a window before 1 June 2026 to familiarise themselves with the revised methodology. The transition to a more granular, NIC-2025-aligned framework is expected to improve the accuracy of industrial output measurement across India's evolving economic landscape.