Mazagon Dock Limited (MDL) (Marathi-मझगांव डॉक लिमिटेड); IAST: Majhagānv Dawk Limiṭeḍ) is India’s prime shipyard. It manufactures warships and submarines for the Indian Navy, and offshore platforms and associated support vessels for offshore oil drilling. It also builds tankers, cargo bulk carriers, passenger ships and ferries.