Core sector growth is often seen as a bellwether for the broader industrial economy. Analyze recent trends in India's core industries and the structural challenges they reveal.

The Index of Core Industries (ICI), compiled by the Office of the Economic Adviser, DPIIT, tracks the output of key infrastructure industries and is watched as a leading indicator of the Index of Industrial Production. Recent readings show steady but narrow-based growth that masks deeper structural weaknesses.

Recent trends

• Moderate, uneven momentum: the ICI grew 5.0% year-on-year in June 2026 (provisional), against 3.2% in May 2026 [1] — a recovery in pace rather than a durable acceleration.
• A new measuring rod: the base year shifted from 2011-12 to 2022-23, replacing the earlier eight-industry series [2][3], with iron ore added as the ninth core industry [1].
• Cleaner compilation: steel is now indexed on gross production, and only raw coal is retained — coal middling and washed coal were dropped to remove double counting; the overall linking factor is 1.47 [1].
• Greater mining sensitivity: with iron ore and coal both inside the basket, the headline number now swings more with monsoon, mine closures and evacuation bottlenecks.

Structural challenges revealed

• Stages of one chain, not value added: crude oil–refinery products and iron ore–steel sit side by side, so the index captures physical volumes, not profitability or competitiveness.
• Import dependence: crude oil and natural gas keep refining and fertilizer output exposed to imported feedstock and global price shocks.
• Narrow coverage: ICI is a slice of the IIP, which MoSPI itself states does not fully cover the unorganised sector or services [4] — strong core growth need not translate into employment.
• Comparability limits: the back series begins only in April 2023 [1], and weights rest on a single year's GVA and ASI data [4], constraining long-cycle analysis despite the Technical Advisory Committee's extensive revision exercise [5].

Core sector data thus signals momentum in heavy industry but cannot certify broad-based industrialisation. Publishing item-wise weights, extending the back series, and reading ICI alongside IIP and employment indicators would sharpen it into a genuine bellwether — aiding the Make in India goal of raising manufacturing's share in GDP and SDG-9 on resilient infrastructure.