<h1>Index of core industries shows mixed sectoral growth, with strong gains in steel and cement and provisional recent-month data.</h1> The release reports the Index of Eight Core Industries (base 2011-12=100), which account for 40.27% of IIP weight, presenting monthly, cumulative and annual indices and growth rates for November 2017 and April-November 2017-18. It shows sectoral divergences with notable monthly increases in Refinery Products, Steel and Cement, a marginal decline in Coal, and a small rise in Crude Oil. Industry weights are derived from IIP and scaled so the combined weight equals 100, and provisional status is noted for recent months with renewable electricity included since April 2014.