Growth of eight infrastructure sectors improved sequentially to 4.8% in October on the back of strong cement, coal and crude oil output. India’s infrastructure sector growth slowed to 4.3 per cent in September hit by a decline in crude oil and fertiliser production and sluggish performance of coal, steel, refinery products and natural gas sectors.Eight Core Industries are Electricity , steel, refinery products, crude oil, coal, cement, natural gas and fertilizers. The Index of Eight Core Industries is a monthly production index, which is also considered as a lead indicator of the monthly industrial performance.The cumulative growth in the combined index of eight core industries during April-August, 2018-19 was 5.5 per cent.