The summary of the Index of Eight Core Industries (base: 2011-12) is given at the Annexure.
The Eight Core Industries comprise 40.27 per cent of the weight of items included in the Index of Industrial Production (IIP). The combined Index of Eight Core Industries stands at 138.0 in March, 2018, which was 4.1 per cent higher as compared to the index of March, 2017. Its cumulative growth during April to March, 2017-18 was 4.2 per cent.
Coal
Coal production (weight: 10.33 per cent) increased by 9.1 per cent in March, 2018 over March, 2017. Its cumulative index increased by 2.5 per cent during April to March, 2017-18 over corresponding period of the previous year.
Crude Oil
Crude Oil production (weight: 8.98 per cent) declined by 1.6 per cent in March, 2018 over March, 2017. Its cumulative index declined by 0.9 per cent during April to March, 2017-18 over the corresponding period of previous year.
Natural Gas
The Natural Gas production (weight: 6.88 per cent) increased by 1.3 per cent in March, 2018 over March, 2017. Its cumulative index increased by 2.9 per cent during April to March, 2017-18 over the corresponding period of previous year.
Refinery Products
Petroleum Refinery production (weight: 28.04 per cent) increased by 1.0 per cent in March, 2018 over March, 2017. Its cumulative index increased by 4.6 per cent during April to March, 2017-18 over the corresponding period of previous year.
Fertilizers
Fertilizers production (weight: 2.63 per cent) increased by 3.2 per cent in March, 2018 over March, 2017. Its cumulative index increased by 0.03 per cent during April to March, 2017-18 over the corresponding period of previous year.
Steel
Steel production (weight: 17.92 per cent) increased by 4.7 per cent in March, 2018 over March, 2017. Its cumulative index increased by 5.6 per cent during April to March, 2017-18 over the corresponding period of previous year.
Cement
Cement production (weight: 5.37 per cent) increased by 13.0 per cent in March, 2018 over March, 2017. Its cumulative index increased by 6.3 per cent during April to March, 2017-18 over the corresponding period of previous year.
Electricity
Electricity generation (weight: 19.85 per cent) increased by 4.5 per cent in March, 2018 over March, 2017. Its cumulative index increased by 5.2 per cent during April to March, 2017-18 over the corresponding period of previous year.
Note 1: Data for January, 2018, February, 2018 and March, 2018 are provisional.
Note 2: Since April, 2014, Electricity generation data from Renewable sources are also included.
Note 3: The industry-wise weights indicated above are individual industry weight derived from IIP and blown up on pro rata basis to a combined weight of ICI equal to 100.
Note 4: Release of the index for April, 2018 will be on Thursday, 31st May, 2018.
Annexure
Performance of Eight Core Industries
Yearly Index & Growth Rate
Base Year: 2011-12=100
Index
| Sector | Weight | 2012-13 | 2013-14 | 2014-15 | 2015-16 | 2016-17 | Apr-Mar 2016-17 | Apr-Mar 2017-18 |
| Coal | 10.3335 | 103.2 | 104.2 | 112.6 | 118.0 | 121.8 | 121.8 | 124.8 |
| Crude Oil | 8.9833 | 99.4 | 99.2 | 98.4 | 97.0 | 94.5 | 94.5 | 93.7 |
| Natural Gas | 6.8768 | 85.6 | 74.5 | 70.5 | 67.2 | 66.5 | 66.5 | 68.5 |
| Refinery Products | 28.0376 | 107.2 | 108.6 | 108.8 | 114.1 | 119.7 | 119.7 | 125.2 |
| Fertilizers | 2.6276 | 96.7 | 98.1 | 99.4 | 106.4 | 106.6 | 106.6 | 106.6 |
| Steel | 17.9166 | 107.9 | 115.8 | 121.7 | 120.2 | 133.1 | 133.1 | 140.5 |
| Cement | 5.3720 | 107.5 | 111.5 | 118.1 | 123.5 | 122.0 | 122.0 | 129.7 |
| Electricity | 19.8530 | 104.0 | 110.3 | 126.6 | 133.8 | 141.6 | 141.6 | 149.0 |
| Overall Index | 100.0000 | 103.8 | 106.5 | 111.7 | 115.1 | 120.5 | 120.5 | 125.6 |
Growth Rates (in per cent)
| Sector | Weight | 2012-13 | 2013-14 | 2014-15 | 2015-16 | 2016-17 | Apr-Mar 2016-17 | Apr-Mar 2017-18 |
| Coal | 10.3335 | 3.2 | 1.0 | 8.0 | 4.8 | 3.2 | 3.2 | 2.5 |
| Crude Oil | 8.9833 | -0.6 | -0.2 | -0.9 | -1.4 | -2.5 | -2.5 | -0.9 |
| Natural Gas | 6.8768 | -14.4 | -12.9 | -5.3 | -4.7 | -1.0 | -1.0 | 2.9 |
| Refinery Products | 28.0376 | 7.2 | 1.4 | 0.2 | 4.9 | 4.9 | 4.9 | 4.6 |
| Fertilizers | 2.6276 | -3.3 | 1.5 | 1.3 | 7.0 | 0.2 | 0.2 | 0.03 |
| Steel | 17.9166 | 7.9 | 7.3 | 5.1 | -1.3 | 10.7 | 10.7 | 5.6 |
| Cement | 5.3720 | 7.5 | 3.7 | 5.9 | 4.6 | -1.2 | -1.2 | 6.3 |
| Electricity | 19.8530 | 4.0 | 6.1 | 14.8 | 5.7 | 5.8 | 5.8 | 5.2 |
| Overall Index | 100.0000 | 3.8 | 2.6 | 4.9 | 3.0 | 4.8 | 4.8 | 4.2 |
Performance of Eight Core Industries
Monthly Index & Growth Rate
Base Year: 2011-12=100
Index
| Sector | Coal | Crude Oil | Natural Gas | Refinery Products | Fertilizers | Steel | Cement | Electricity | Overall Index |
| Weight | 10.3335 | 8.9833 | 6.8768 | 28.0376 | 2.6276 | 17.9166 | 5.3720 | 19.8530 | 100.0000 |
| Mar-17 | 169.5 | 97.4 | 69.1 | 128.9 | 103.6 | 146.2 | 131.8 | 147.9 | 132.5 |
| Apr-17 | 103.1 | 92.6 | 63.5 | 116.0 | 89.0 | 134.1 | 122.3 | 150.6 | 118.7 |
| May-17 | 111.8 | 97.6 | 69.7 | 125.4 | 98.3 | 142.9 | 128.6 | 158.1 | 126.8 |
| Jun-17 | 107.6 | 94.1 | 69.3 | 119.4 | 107.3 | 138.0 | 132.0 | 147.4 | 121.7 |
| Jul-17 | 98.5 | 96.4 | 72.2 | 119.4 | 108.6 | 131.3 | 122.4 | 151.9 | 120.4 |
| Aug-17 | 101.3 | 95.1 | 69.5 | 121.6 | 115.4 | 139.0 | 117.3 | 155.4 | 123.0 |
| Sep-17 | 103.1 | 92.0 | 68.8 | 122.7 | 105.3 | 138.7 | 119.8 | 150.5 | 122.0 |
| Oct-17 | 119.4 | 95.7 | 71.0 | 132.1 | 116.8 | 146.7 | 125.2 | 149.8 | 128.7 |
| Nov-17 | 133.5 | 90.8 | 68.5 | 126.0 | 111.8 | 137.5 | 125.4 | 140.1 | 124.1 |
| Dec-17 | 142.6 | 94.2 | 69.2 | 133.1 | 112.1 | 138.0 | 135.3 | 143.9 | 128.8 |
| Jan-18 | 148.7 | 93.8 | 67.7 | 135.4 | 105.5 | 145.0 | 140.6 | 149.5 | 132.4 |
| Feb-18 | 143.3 | 86.1 | 62.3 | 120.9 | 102.2 | 141.7 | 138.0 | 136.1 | 123.2 |
| Mar-18 | 185.0 | 95.8 | 70.0 | 130.2 | 107.0 | 153.2 | 148.9 | 154.6 | 138.0 |
Growth Rates (in per cent)
| Sector | Coal | Crude Oil | Natural Gas | Refinery Products | Fertilizers | Steel | Cement | Electricity | Overall Index |
| Weight | 10.3335 | 8.9833 | 6.8768 | 28.0376 | 2.6276 | 17.9166 | 5.3720 | 19.8530 | 100.0000 |
| Mar-17 | 10.6 | 0.9 | 9.6 | 2.0 | -3.0 | 11.0 | -6.8 | 6.2 | 5.2 |
| Apr-17 | -3.3 | -0.6 | 2.0 | 0.2 | 6.2 | 9.0 | -5.2 | 5.3 | 2.6 |
| May-17 | -3.2 | 0.7 | 4.5 | 5.4 | -5.9 | 3.8 | -1.4 | 8.2 | 3.9 |
| Jun-17 | -6.7 | 0.6 | 6.4 | -0.2 | -2.7 | 6.0 | -3.3 | 2.2 | 1.0 |
| Jul-17 | 0.6 | -0.5 | 6.6 | -2.7 | 0.2 | 9.4 | 1.0 | 6.6 | 2.9 |
| Aug-17 | 15.4 | -1.6 | 4.2 | 2.4 | -0.6 | 2.2 | 0.7 | 8.3 | 4.4 |
| Sep-17 | 10.4 | 0.1 | 6.3 | 8.1 | -7.7 | 3.7 | 0.1 | 3.4 | 4.7 |
| Oct-17 | 3.9 | -0.4 | 2.8 | 7.5 | 3.0 | 8.6 | -1.3 | 3.2 | 5.0 |
| Nov-17 | 0.7 | 0.2 | 2.4 | 8.2 | 0.3 | 14.5 | 16.9 | 3.9 | 6.9 |
| Dec-17 | 0.4 | -2.1 | 1.1 | 6.6 | 3.0 | 0.4 | 17.7 | 4.4 | 3.8 |
| Jan-18 | 3.2 | -3.2 | -1.0 | 11.0 | -1.6 | 1.7 | 19.6 | 7.7 | 6.1 |
| Feb-18 | 1.3 | -2.4 | -1.5 | 7.8 | 5.2 | 5.0 | 23.0 | 4.6 | 5.4 |
| Mar-18 | 9.1 | -1.6 | 1.3 | 1.0 | 3.2 | 4.7 | 13.0 | 4.5 |
4.1 |
