The eight core industries comprise nearly 38% of the weight of items included in the Index of Industrial Production (IIP).  The combined Index of eight core industries stands at 183.7 in May, 2016, which was 2.8% higher compared to the index of May, 2015. Its cumulative growth during April to May, 2016-17 was 5.5%.

Coal production increased by 5.5% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 increased by 2.3% over corresponding period of previous year.

Crude Oil production decreased by 3.3% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 decreased by 2.8% over the corresponding period of previous year.

The Natural Gas production decreased by 6.9% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 declined by 6.9% over the corresponding period of previous year. Petroleum Refinery production increased by 1.2% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 increased by 9.0% over the corresponding period of previous year.

Fertilizer production increased by 14.8% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 increased by 11.6% over the corresponding period of previous year.

Steel production increased by 3.2% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 increased by 4.6% over the corresponding period of previous year.

Cement production increased by 2.4% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 increased by 3.4% over the corresponding period of previous year.

Electricity generation increased by 4.6% in May, 2016 over May, 2015. Its cumulative index during April to May, 2016-17 increased by 9.4% over the corresponding period of previous year.