India's infrastructure output, which tracks activity across eight sectors and makes up 40% of the country's industrial production, grew at 0.5% annually in April as against 4.6% in March, data from Ministry of Commerce & Industry showed on Tuesday.

The Index of eight Core Industries is the measure of combined and individual performance of production of eight core industries: Coal, Crude Oil, Natural Gas, Refinery Products, Fertilizers, Steel, Cement and Electricity.

The cumulative growth rate of index of eight core industries during April to March, 2024-25 stood at 4.5% as compared to the corresponding period of last year.

Cement output rose 6.7% in April, while steel production climbed 3% against in the same month.

Coal production, which holds 10.33% weightage increased by 3.5% in April 2025, over same time last year. Crude Oil production declined by 2.8% per cent in April, 2025.

Fertilizer production, with 2.63% weightage, declined in April by 4.2% compared with 8.8% in the prior month. Natural Gas production with a weightage of 6.8% increased by 0.4% in April.

Electricity generation was up 1% in April, against a revised 6.2% increase in the prior month.