Tube Investments of India Limited, together with its subsidiaries, engages in the manufacture and sale of engineering, mobility, and metal formed products in India and internationally. It operates through nine segments: Engineering, Metal Formed Products, Mobility, Gear and Gear Products, Power Systems, Industrial Systems, Semiconductors, Electric Vehicles, and Medical. The Engineering segment offers cold rolled steel strips, precision steel tubes, cold drawn welded tubes, electric resistance welded tubes, and tubular components. The Metal Formed Products segment provides automotive chains, fine blanked and stamped products, roll-formed car doorframes, and cold rolled formed sections. The Mobility segment offers standard bicycles; special bicycles, including alloy bikes; specialty performance bikes; fitness equipment; and electric bicycles, as well as cycling accessories, bi-cycle component spares, and home/semi commercial fitness equipment. The Gear and Gear Products segment provides gears, gear boxes, gear motors, and gear assemblies. The Power Systems segment offers transformers and switch gears, as well as undertakes automation and turnkey projects. The Industrial Systems segment provides electric motors, alternators, drives, and traction electronics, as well as SCADA solutions. The Semiconductors segment engages in the outsourced semiconductor assembly and test, and fabless semiconductor design businesses. The Electric Vehicles segment offers electric three-wheelers, tractors, medium and heavy commercial vehicles, and small commercial vehicles. The Medical segment is involved in the provision of medical consumables; and contract development and manufacturing operations of active pharmaceutical ingredients. It also provides industrial chains, optic lens, TMT bars, adhesive tapes and labels, aluminium tubes and parts, and TI machine building solutions. The company was founded in 1900 and is based in Chennai, India.