New Delhi, Jan 20 (UNI) India’s core industrial sectors registered a solid expansion in December 2025, with overall growth of 3.7 per cent compared to the same month last year, a Ministry of Commerce & Industry said on Tuesday here. The Index of Eight Core Industries – which includes sectors such as coal, crude oil, natural gas, refinery products, fertilisers, steel, cement and electricity – serves as a key indicator of industrial activity. Among major sectors, cement recorded the highest increase in production at 13.5 per cent, reflecting robust construction demand.