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The Office of the Economic Adviser (OEA), DPIIT, released the revised Index of Core Industries (ICI) with 2022-23 as the new base year (replacing 2011-12), adding iron ore as the ninth core industry.
Core sector growth for June 2026 came in at 5%, the highest in five months, driven by a 43.9% surge in iron ore output.
Electricity now carries the highest weight (30.93%) in the revised index, overtaking refinery products; iron ore has been assigned a 4.9% weight, following the Praveen Mahto Committee (2025) recommendations.
Petroleum-linked sectors — crude oil, natural gas, refinery products and fertilisers — continued their prolonged declines even as the overall index accelerated.
| Index | Measures | Released By |
|---|---|---|
| ICI | Production of 9 core infrastructure sectors | OEA, DPIIT (base year 2022-23) |
| IIP | Mining, Manufacturing, Electricity, Gas/Water Supply | NSO, MoSPI (base year 2022-23) |
| ISP | Index of Services Production | MoSPI |
GS Paper III > Indian Economy, Industrial Growth, Economic Indicators
General Awareness > Economic Indices
General Awareness > Economy
A monthly index tracking the production of India's key infrastructure/industrial sectors, released by the OEA, DPIIT
The reference year (=100) against which an index's later values are measured; the ICI's new base year is 2022-23