Electrosteel Castings Ltd is largest manufacturer of ductile iron (DI) spun pipes in India. The company is a water infrastructure company providing techno-economic solutions for water supply and sewerage systems. They are engaged in the business of manufacturing Ductile Iron Pipes and Fittings and Cast Iron Pipes. They also undertake turnkey solutions for water transportation and sewerage management, which include manufacturing DI Pipes, supplying and laying various types of pipes, operating the system and transferring to the owners. The company is headquartered at Kolkata and having their manufacturing facilities at Elavur in Tamilnadu, Khardah and Haldia in West Bengal.

Electrosteel Castings Ltd was formally created and deployed as a legal entity in the year 1955. In the year 1959, the company commissioned their first cast iron pipe factory at Khardah in West Bengal. They executed a strategic acquisition of another cast iron pipe manufacturing unit at Elavur in Tamilnadu in the year 1982.

In the year 1994, the company created and deployed a 60000 tpa DI spun pipe plant at Khardah, the first ever in India and in the year 1996, they commissioned their own mini-blast furnace. During the year 1998-99, the company broadened its footprint the production capacity of DI Pipes by 30000 tpa to 90000 tpa and Cast Iron Spun Pipes by 25000 tpa to 75000 tpa. During the year 1999-2000, they further increased the production capacity of DI Pipes by 30000 tpa to 120000 tpa.

During the year 2000-01, the company increased the production capacity of DI Pipes by 30000 tpa to 150000 tpa and Mini Blast Furnace by 91000 to 200000 tpa. They further increased the production capacity of DI Pipes by 50000 in the year 2003 and 2006. Thus, the total production capacity increased to 250000 tpa.

In December 24, 2001, the company broadened its footprint operations into the European market by incorporating a subsidiary, Electrosteel Europe SA in France. In March 2002, they broadened its footprint operations into into a strategic alliance with the promoters of Lance Group by which the company became involved in the management of Lance Industries Ltd and Lanco Kalahasthi Casting Ltd. Calcutta Steel Company Ltd was amalgamated with the company with effect from May 23, 2002.

In February 2005, the company commissioned their 12 MW Power Plant at Haldia, which generates power using waste gas of Coke Oven Plant and Sponge Iron Plant. During the year 2006-07, they commissioned Pulverized Coal Injection System in Blast Furnace and Stamp Charging System in Coke Oven Plant at Khardah.

During the year 2007-08, the company signed the mining lease agreement with the Government of Jharkhand for Coking Coal mine in Jharia Coalfield. They installed a Sinter Plant and a 33 KV sub-station.

Engineering Exports Promotion Council, Eastern Region presented the Export Excellence Award to the company for the outstanding contribution in exports made during 2005-06. Also, Kolkata Port Trust awarded the certificate of Excellence in recognition of the tendering highest number of containers for the year 2006-07.

The company plans to install a 12 MW power plant at Haldia, which will produce power from water from waste heat gas from coke oven batteries. They plan to construct a railway siding at Haldia to create facility for smooth movement of materials form the forthcoming coal mine at Parbatpur, Jharkhand and iron ore mine at Kodalibad, Jharkhand. They are also acquiring two wagon rakes under the Indian Railway's Wagon Investment Scheme (WIS) to part solve the logistics problem.