Mumbai-based company whose activities include steel products manufacture (alloy, special & stainless steel long products), machine building (bulk material handing equipment etc), turnkey projects & highway construction

Manufacturers of galvanised plain steel coils, steel sheets & corrugated steel sheets; based in Indore; has a production capacity of 140,000 tpa; part of the Ruchi Group

Business group engaged in construction and infrastructure, steel, power, ports, and information technology; based in Hyderabad

Company based in New Delhi; part of the Surya Roshni Group; activities: iron ore & coal mining, sponge iron, steel bloom/ billets/ ingots, structural steel, wire rods & HB wire, ferro alloys, rigid PVC pipes etc

Group in Mumbai, comprising Pratibha Industries Ltd (infrastructure development, designing and constructing water transmission projects, water treatment plants etc) and Pratibha Pipes & Structural Pvt Ltd (SAW pipes and steel structurals)

Leading manufacturers of 200 series stainless steel based in Ahmedabad, Gujarat; makes utensil, austenitic & martensitic grade stainless steel, stainless steel plates, coils, bars etc

Manufacturers of automobile spring steel based in Nagpur, Maharashtra; makes flats, rounds, round-corned squares etc; annual capacity: 200,000 tonnes

Joint venture in Pune between Tata Steel Limited, India & BlueScope Steel Limited, Australia; offers branded steel products for building & construction applications including premium & coated steels, rollformed steel products & metal building systems

Manufacturers & suppliers of pig iron, with plants in Kharagpur (West Bengal) & Redi (Maharashtra); corporate office is in Kolkata; has five blast furnaces & captive power plants

Manufacturers of sponge iron based in Joda in Keonjhar District, Orissa; sister company of Tata Steel