They are the eight most fundamental industries that have a major impact on the Indian Economy. This index maps the volume of production in these industries. These are major industries under IIP (Index of Industrial Production) and carry a weightage of 40.27 per cent out of all the industries. These industries are basic and/or intermediate elements in the functioning of the overall economy and support in mapping the health of the economy to understand its state. If these core industries are growing at a fast rate, then it is likely that the whole economy will also grow fast.
Refinery Products, Electricity and Steel hold the highest weightage.
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