NSO’s New Index of Industrial Production Series

The National Statistical Office (NSO) releases a new Index of Industrial Production (IIP) series and reports industrial output growth of 4.9% in April 2026, slower than 5.8% in the same period last year. The updated IIP series incorporates base-year revision, an expanded commodity basket, and revised sectoral divisions.

Index of Industrial Production (IIP): New Series (Base Year 2022–23)

Dimension	Key Details
What IIP comprises	The IIP comprises a key economic indicator that measures short-term changes in the volume of physical production in Indian industries.
Publication	The IIP monthly publication is governed by the National Statistical Office (NSO) under the Ministry of Statistics and Programme Implementation (MoSPI).
Core industries coverage in IIP	The IIP comprises data from 8 core industries: Coal, Crude Oil, Natural Gas, Refinery Products, Fertilizers, Steel, Cement, and Electricity.
Core industries weight in IIP	The 8 core industries comprise over 40% of the total IIP weight.
Base year revision	The IIP base year has been shifted from 2011–12 to 2022–23, with the index baseline set at 100, and it aligns with the updated GVA and GDP series.
Expanded commodity basket	The commodity basket has been expanded to 1,042 products mapped to 463 item groups, compared to 839 products in the older series.
Sectoral indices coverage	The IIP sectoral coverage has been expanded from 3 traditional sectors to 4 sectoral indices by incorporating a new composite division.
Sectoral divisions in new series	The new IIP series comprises sectoral divisions for Mining, Manufacturing, Electricity, and Gas supply, water supply, sewerage, and waste management activities.
Mining data granularity	The mining sector classification comprises fuel minerals, metallic minerals including rare earth minerals, and non-metallic minerals including minor minerals.
Electricity data granularity	The electricity sector classification comprises an explicit segmentation into renewable and non-renewable energy sources.
Data continuity provision	A linking formula has been introduced to allow users to compare the old and new IIP data series.
Manufacturing	Manufacturing comprises ~75% weight in the IIP basket and 6.2% YoY growth in April 2026, compared to 6.3% in April 2025; out of 23 industries, 6 industries comprise contraction.
Mining and quarrying	Mining and quarrying comprises a YoY shrinkage of over 5% in April 2026.
Electricity	Electricity comprises slower growth in April 2026 compared to the previous fiscal year.
Gas, water, and waste	Gas, water, and waste management division comprises slower growth in April 2026 compared to the previous fiscal year.
Key manufacturing sub-sector drivers (April 2026)	Manufacturing sub-sectors comprise 19.2% growth in Electrical Equipment, and contractions in Wood products (-12.5%), Wearing Apparel (-7%), and Coke and Refined Petroleum Products (-0.4%).
Use-based classification categories	The IIP use-based classification comprises 6 functional categories: Primary Goods, Capital Goods, Intermediate Goods, Infrastructure and Construction Goods, Consumer Durables, and Consumer Non-Durables.
Quickened growth (April 2026)	Capital Goods comprise 16% growth, Infrastructure and Construction Goods comprise 7.1% growth, and Intermediate Goods comprise 7.7% growth in April 2026.
Slowed growth (April 2026)	Primary Goods comprise 0.8% growth, Consumer Durables comprise 4.3% growth, and Consumer Non-Durables comprise 2.8% growth in April 2026.