Manufacturer catalog
Mazagon Dock Limited is the legacy manufacturer name for Mazagon Dock Shipbuilders Limited, India's Ministry of Defence-controlled naval shipyard at Mumbai. The company builds and refits warships, submarines, offshore platforms, patrol craft, support vessels, and heavy-engineering structures, including Indian Navy destroyer, frigate, and submarine programs.
2 weaponsMazagon Dock's modern role is concentrated in naval construction for India. The official company site says the yard has built more than 800 vessels since 1960, including warships from advanced destroyers to missile boats and multiple submarines, alongside cargo ships, passenger ships, support vessels, tugs, dredgers, barges, border outposts, offshore platforms, and related heavy-engineering products.
The company operates from Dockyard Road in Mumbai and describes itself in its FY 2024-25 annual report as a defence shipyard under India's Ministry of Defence. Its public reporting and government releases place the yard at the center of India's current surface-combatant and submarine programs, including Project 15A/15B destroyers, Project 17A frigates, and Project 75 Scorpene/Kalvari-class submarines.
INS Chennai is a Kolkata-class Project 15A guided-missile destroyer built by Mazagon Dock Limited in Mumbai and commissioned into the Indian Navy in November 2016.
Sources: INS Chennai joins the Indian Navy
India's Project 75 / Kalvari-class Scorpene boats were built at MDL under collaboration with Naval Group, with the sixth submarine, Vaghsheer, commissioned in January 2025.
Sources: Annual Report FY 2024-25, PIB Scorpene Project 75
Mahendragiri is a Project 17A stealth frigate from the MDL-built Nilgiri-class line, launched at Mumbai in 2023 and delivered to the Indian Navy in 2026.
Sources: PIB Mahendragiri deliveryCompany and government background material trace the modern corporate yard to Mazagon Dock Limited's 1934 incorporation, following a longer dockyard history at Mazagon.
Sources: Annual Report FY 2024-25, PIB 250th anniversary
MDL's public materials identify 1960 as the point from which the yard's modern record of Indian government-controlled naval and commercial shipbuilding is counted.
Sources: MDL official website, Annual Report FY 2024-25
Government and company material in 2024 described MDL as the first Indian shipyard to receive Navratna public-sector status, expanding its operating autonomy within India's public-sector enterprise framework.
Sources: PIB 250th anniversary
The Indian government described INS Vaghsheer as the sixth Project 75 Kalvari-class submarine when it was commissioned at Mumbai, marking completion of the six-boat Scorpene construction sequence at MDL.
Sources: PIB Scorpene Project 75, Annual Report FY 2024-25
MDL announced that Colombo Dockyard PLC became a subsidiary after completion of a controlling 51 percent acquisition, extending the Indian shipyard's corporate footprint outside India.
Sources: Colombo Dockyard acquisition
Connected weapon records currently use the legacy Mazagon Dock Limited manufacturer name. Official current sources generally identify the company as Mazagon Dock Shipbuilders Limited or MDL; the separate current-name record should be reviewed before aliases are reassigned.
Category
Warships, submarines, unmanned surface vessels, naval craft, and maritime combat systems.