The summary of the Index of Eight Core Industries (base: 2004-05) is given at the Annexure.

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 165.6 in December, 2013, which was 2.1 % higher compared to the index of December, 2012.

Coal

Coal production (weight: 4.38 %) declined by 0.6 % in December, 2013 over December, 2012. Its cumulative index during April to December, 2013-14 increased by 1.2 % over corresponding period of previous year.

Crude Oil

Crude Oil production (weight: 5.22 %) increased by 1.6 % in December, 2013 over December, 2012. The cumulative index of Crude Oil during April to December, 2013-14 moderated by 0.6 % over the corresponding period of previous year.

Natural Gas

The Natural Gas production (weight: 1.71 %) declined by 9.9 % in December, 2013 over December, 2012. Its cumulative index during April to December, 2013-14 declined by 15.0 % over the corresponding period of previous year.

Petroleum Refinery Products (0.93% of Crude Throughput)^[1]

Petroleum refinery production (weight: 5.94%) moderated by 1.7 % in December, 2013 over December, 2012. However, its cumulative index during April to December, 2013-14 increased by 2.1 % over the corresponding period of previous year.

Fertilizers

Fertilizer production (weight: 1.25%) registered a growth of 4.1 % in December, 2013 over December, 2012 and it registered a cumulative growth of 2.6 % during April to December, 2013-14 over the corresponding period of previous year.

Steel (Alloy + Non-Alloy)

Steel production (weight: 6.68%) recorded a growth rate of 3.1 % in December, 2013 over December, 2012. The cumulative growth during April to December, 2013-14 was 4.2 % over the corresponding period of previous year.

Cement

Cement production (weight: 2.41%) increased by 1.1 % in December, 2013 over December, 2012 and its cumulative growth during April to December, 2013-14 was 3.7 % over the corresponding period of previous year.

Electricity

Electricity generation (weight: 10.32%) increased by 6.7 % in December, 2013 over the period of December, 2012 and it registered a cumulative growth of 5.2 % during April to December, 2013-14 over the corresponding period of previous year.

Note: Data are provisional. Revision has been made based on revised data obtained for corresponding month of previous year in respect of Coal, Crude Oil, Natural Gas, Refinery Products and Steel.

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^[1]Note: RIL (SEZ) production figures for December, 2013 are on prorated basis.

Index of Eight Core Industries shows year-on-year rise driven by higher electricity and steel output, with mixed sectoral results The Index of Eight Core Industries rose year on year to 165.6 in December 2013 (a 2.1% increase), with a combined weight of 37.90% in the IIP. Electricity generation and steel contributed positively, while natural gas and coal declined; crude oil, refinery products, fertilizers and cement showed mixed modest gains. Data are provisional and revisions were made where revised historical monthly data were available.