This is an important industry of construction industry. In it, infrastructure of steel plants, construction of railway bridges and hydrolic gate etc. are included. In it, total 250 industries are included having a total production capacity of 6 lakh tons. In this, (Allahabad), Tungabhadra (Karnataka), Bharat Heavy Plate and Vessals Limited Visakhapatnam, Larsen and Turbo Ltd, Pawai, Mumbai and Narora (Ahmedabad) are the main factories.
