Core sector output falls 0.4% in March 2026 after 5-month run

What the March core sector print showed

India’s Index of Eight Core Industries contracted 0.4% year-on-year in March 2026 on a provisional basis, ending a five-month stretch without a decline. The fall was attributed to weaker production in fertilisers, crude oil, coal, and electricity. Core industries are closely tracked because they represent 40.27% weight in the Index of Industrial Production (IIP), making the data an important signal for broader industrial activity. The March reading was also described as the lowest growth rate since August 2024. The government released the data on Monday.

Month-on-month context: from growth in February to contraction in March

The March contraction came after an expansion in February 2026. In the March release, February core sector growth was cited at 2.8%. Separately, the February core sector release had pegged growth at 2.3% year-on-year, down from 4.7% in January, pointing to a visible loss of momentum even before the March dip. Across both releases, the direction is consistent: growth cooled ahead of March and then turned marginally negative.

Fertilisers saw a sharp fall amid input issues

Among the sectors highlighted as drags in March, fertilisers stood out. Fertiliser output plunged 24.6% year-on-year in March 2026, which was described as unprecedented in the provided data. The decline was linked to input shortages amid the West Asia crisis. Given fertilisers’ role in the farm supply chain, this reading is likely to be watched beyond the industrial indicators, especially for what it signals about operational disruptions and availability of key inputs.

Energy-linked segments stayed under pressure

Energy and commodity-linked segments were also weak in March, with crude oil, coal, and electricity cited as contributors to the contraction. Electricity generation slipped 0.5% compared with March 2025, adding to the drag. The broader narrative in the data points to continued strain in energy-related production, even as some infrastructure-facing segments in the core basket have shown resilience.

FY26 picture: growth modest, but several segments contracted

For the full financial year FY26 (April 2025 to March 2026), cumulative growth of the eight core industries stood at 2.6% on a provisional basis. But the cumulative break-up also showed multiple areas under pressure. Coal production declined 0.5% during FY26, while crude oil output fell 2.8% and natural gas production dropped 2.8%. Refinery products and fertilisers each declined 0.1% during the year. The combination suggests that while aggregate growth remained positive for the year, the mix of growth was uneven.

Steel and cement resilience versus energy weakness

The data described a mixed trend in industrial activity. Infrastructure-linked sectors such as steel and cement were cited as showing resilience, while energy and commodity-linked sectors remained under pressure. In the earlier February release, steel grew 7.2% year-on-year and cement rose 9.3%, with economists linking performance to the government’s infrastructure push. At the same time, February also saw declines in refinery products (-1%), crude oil (-5.2%), and natural gas (-5%), reinforcing the theme that energy segments have been the weak spot.

Why this matters for IIP and broader macro signals

Because the eight core industries carry a 40.27% weight in the IIP, a contraction in March may influence the headline industrial production numbers for the final month of FY26. The provided data explicitly flagged that the March print may have implications for broader industrial production numbers. The core sector series is also widely used as a lead indicator for GDP-linked industrial momentum, so a run of weak prints tends to draw closer attention from economists and market participants.

Market watch: sectors and stocks in focus

The negative core sector print is likely to focus investor attention on power, oil and gas, and mining-linked businesses. The provided context flagged companies such as NTPC (electricity), Coal India (coal), ONGC (crude oil), and fertiliser makers such as RCF and NFL as names that could face selling pressure. Separately, the data narrative also noted that broad weakness in core industries can spill over into infrastructure and capital goods, if demand softens. These are watchpoints rather than confirmed outcomes, but they frame how markets often map macro data to sector exposure.

Key figures at a glance

What to track next

The release of the core sector index for April is scheduled for May 20 (Wednesday), according to the provided data. With March showing a marginal contraction, the next print will be tracked for whether energy-linked segments stabilise and whether the resilience in steel and cement continues to offset weakness elsewhere. For now, the FY26 close-out data highlights an economy where infrastructure-facing production held up better than domestic energy production.