The eight core industries have a combined weight of 37.90% in the Index of Industrial Production (IIP). The combined Index of Eight Core Industries stands at 163.9 in July, 2014, which was 2.7% higher compared to the index of July, 2013. Its cumulative growth during April to July, 2014-15 was 4.1%. Coal production increased by 6.2% in July, 2014 over July, 2013. Its cumulative index during April to July, 2014-15 increased by 5.7% over corresponding period of previous year.

Crude Oil production declined by 1.0% in July, 2014 over July, 2013. The cumulative index of crude oil during April to July, 2014-15 declined by 0.3% over the corresponding period of previous year. The natural gas production declined by 9.0% in July, 2014 over July, 2013. Its cumulative index during April to July, 2014-15 declined by 5.2% over the corresponding period of previous year.

Petroleum refinery production declined by 5.5% in July, 2014 over July, 2013. Its cumulative index during April to July, 2014-15 declined by 2.2% over the corresponding period of previous year. Fertilizer production declined by 4.2% in July, 2014 over July, 2013. It registered a cumulative growth of 4.9% during April to July, 2014-15 over the corresponding period of previous year.

Steel production decreased by 3.4% in July, 2014 over July, 2013. While, its cumulative index during April to July, 2014-15 increased by 0.3% over the corresponding period of previous year. Cement production increased by 16.5% in July, 2014 over July, 2013. Its cumulative growth during April to July, 2014-15 was 11.1% over the corresponding period of previous year.

Electricity generation increased by 11.2% in July, 2014 over the period of July, 2013 and it registered a cumulative growth of 11% during April to July, 2014-15 over the corresponding period of previous year.