Core sector growth slows to 4% in January
While seven of the eight sectors recorded slower growth in January than in December, energy-related segments were a bigger drag
Growth in eight key infrastructure sectors, as measured by the combined Index of Eight Core Industries, eased to 4% in January from 4.7% in December 2025, according to data released by the Ministry of Commerce and Industry on Friday. On a cumulative basis, growth during April to January in the current financial year stood at 2.8%, according to the release.

The eight sectors covered by the index are coal, crude oil, natural gas, refinery products, fertilisers, steel, cement, and electricity. Together, they account for 40.27% of the weight of items included in the broader Index of Industrial Production (IIP).
While seven of the eight sectors recorded slower growth in January than in December, energy-related segments were a bigger drag. Crude oil production contracted 5.8% year on year in January, up from a 5.6% contraction in December. Natural gas output fell 5.0%, also more than the 4.4% contraction in December. Output of refinery products, which carry the highest weight of 28.04% in the index, was the same as in January 2025. To be sure, this was an improvement compared to the 1% contraction seen in December.
In contrast, construction and manufacturing-linked segments stayed strong despite some slowdown in growth. Cement output rose 10.7% year-on-year in January compared to 13.7% in December. Steel production increased 9.9% compared to 10.1% in December.
Fertiliser output grew 3.7%, and electricity generation rose 3.8%, helping offset weakness in oil and gas. Coal production also rose 3.1% in January. The growth rate of fertilizer, electricity, and coal sectors was 4.1%, 6.3%, and 3.6% in December.
To be sure, the January data is provisional and subject to revision in subsequent releases, and should therefore be read with caution.
ABOUT THE AUTHORSreedev KrishnakumarSreedev Krishnakumar is a data journalist who specialises in stories at the intersection of the economy, geopolitics, politics and finance. His work combines data analysis, reporting and visual storytelling to explain complex issues through evidence-based journalism, with a focus on making public data accessible and meaningful for readers. He joined the Data and Political Economy team at Hindustan Times in 2024 after working as a correspondent/data journalist at Moneycontrol, where he covered macroeconomics, markets, public finance and business. Over the course of his career, he has developed expertise in analysing large datasets, building interactive visualisations and using computational methods to uncover trends and patterns that inform public debate. Sreedev holds a Postgraduate Diploma in Integrated Multimedia Journalism from the Asian College of Journalism. His reporting interests include finance, economics, geopolitics, trade, technology and development.Read More

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