Maharashtra Seamless Limited (MSL), incorporated on 10th May 1988, is the flagship company of the well diversified DP Jindal group. The Company is engaged in the manufacture of seamless pipes (various capacities), which find application in oil exploration, boilers, pipelines, petrochemicals etc. The plant is located at Raigad, Maharashtra, and is equipped with state-of-the-art machinery. The company has a technical collaboration with Mannesmann Demag Huttentechnik, Germany. MSL uses the world-renowned CPE technology and is capable of producing size range from 3/4' OD to 7' OD in hot finished and from 10 mm OD to 108 mm OD in cold drawn and cold pilgered condition. Besides seamless pipes and tubes, the company also makes large diameter Electric Resistance Welded (ERW) pipes from size 8' to 20' and wall thickness from 3.2 mm to 12.70 mm. About 20 per cent of the production of MSL is exported to USA and 7 per cent to other countries.

The Company had signed a Memorandum of Understanding (MoU) for continuous supply of Steel Billets in the year 1994-95. MSL agreed with Salosha Investments and Financial Services Ltd and Shree Ambaji Properties Ltd during the year 1995-96 for manufacturing activities. In September of the year 2000 the company's new project of Electric Resistance Welded (ERW) Pipes for producing 4' OD to 21' OD ERW Pipes with an installed capacity of 50,000 M.T. per annum at Pipe Nagar, Maharashtra was commissioned. In the year 2001-02, the company production capacity was doubled from 50,000 MT to 1, 00,000 MT. During the year 2004-2005, the company broadened its footprint operations into into joint venture with Hydril LP to manufacture premium joint connections to facilitate company consolidation in both domestic and international market of seamless pipes by going to new export avenues. In same year of 2004-2005 the company broadened its footprint its production facilities, using plug mill technology supported by world class revelers, to manufacture for the first time in India, large size seamless pipes of diameter upto 14 inches and wall thickness upto 40 mm.

As on 4th January 2008, the company executed a strategic acquisition of seamless plant in Romania with an installed capacity of 200,000 TPA. In the same year, the company opened its export branch in USA to facilitate better services and customer support to its large base of Oil Country Tubular Goods (OCTG) and Line pipe customers in USA, Canada and Latin America. In June of the same year 2008, MSL had bagged export orders worth USD 45 million from USA. The company has also received domestic order worth Rs 860 million from Indian Oil Corporation (IOC).

MSL plans to created and deployed a 1 million ton per year billet plant in Maharashtra to feed its planned seamless pipe expansion. The backward integration project at Dubri in Orissa is part of MSL's aim to increase pipe capacity to 5, 00,000 tons per year from the current 3, 50,000 tons. The proposed steel plant will manufacture billets for captive consumption. Estimated to cost USD 44.8 million (about Rs 1800 million), the project involves relocation of the firm's newly executed a strategic acquisition of pipe plant in Romania to India.