### **Overview** **Mazagon Dock Shipbuilders Limited (MDL)** is India’s premier defense public sector shipyard under the Ministry of Defence, recognized as the nation’s “Shipbuilders to the Nation.” Headquartered in Mumbai, with operations in Nhava (Navi Mumbai), MDL plays a pivotal role in India’s naval modernization, self-reliance, and maritime industrial growth. With a legacy dating back to 1934, MDL has evolved into a full-spectrum maritime solutions provider, combining public-sector credibility with private-sector efficiency through its unique public-private partnership model. In 2024, MDL achieved the prestigious **Navratna status**, becoming the only third Defence Public Sector Undertaking (PSU) and the first government-owned shipyard to do so. This milestone underscores its financial health, operational autonomy, and strategic importance to India’s national security and defense export ambitions. --- ### **Core Business Segments** MDL operates through two primary divisions: - **Shipbuilding Division**: Constructs and repairs commercial and naval vessels, including destroyers, frigates, offshore patrol vessels (OPVs), and commercial ships. - **Submarine & Heavy Engineering Division**: Specializes in the design, construction, repair, and refit of diesel-electric submarines, offshore platforms, and heavy engineering products. The company has delivered **over 805 vessels** since nationalization in 1960, including warships, submarines, commercial vessels, support crafts, and floating border outposts for domestic and international clients. --- ### **Key Strengths & Competitive Advantages** #### **1. Unique Capabilities** - Only defense shipyard in India to build **both destroyers and conventional submarines**. - Only Indian shipyard with **two independent submarine assembly and launch lines**. - Pioneer in building the **Veer and Khukri-class corvettes**, the first-of-class vessels for the Indian Navy. #### **2. Strategic Infrastructure** - ISO 9001:2015-certified facilities across multiple locations: Mazdock, Nhava Yard, South Yard Annexe, and Shore Integration Facility. - World-class infrastructure enabling **simultaneous construction of 10 warships and 11 submarines**. - Key assets include: - 300-ton Goliath Crane (138m span) - Module Workshop with 50-ton cranes - 27,000 sq.m wet basin - Shore Integration Facilities (SIF) for system simulation - Virtual Reality (VR) and Augmented Reality (AR) labs #### **3. Technological Advancement & Innovation** - **Industry 4.0 Integration**: Utilizing AI, digital twin, PLM/PDM systems, and automated inspection tools. - **AI-Driven R&D**: In collaboration with IITs and startups, MDL has deployed: - AI-enabled weld inspection via computed radiography - Robotic ultrasonic testing (UT) for welds - AI-powered Remotely Operated Vehicles (ROVs) for underwater inspections - Predictive maintenance systems and energy management tools - **VR/AR for Design Validation**: Uses virtual and augmented reality to reduce physical rework, accelerate design approvals by **2–3 years**, and enhance construction accuracy. #### **4. Make in India & Indigenization** - Established a dedicated **'Make in India' department** to boost local content. - Indigenized critical components: main batteries, air-conditioning plants, NBC filters, sonar domes, flame dampers, and remote-controlled valves. - Developing indigenous systems including: - **Midget Submarine** (fully designed in-house) - **Lithium-ion battery systems** (50 Ah cell, 100 kWh prototype for submarines) - **Fuel Cell Electric Vessel (FCEV)** with zero CO₂ emissions - **Hybrid and solar-powered boats** (launched 24-passenger prototype in 2023) --- ### **Operational & Project Highlights (As of Aug–Nov 2025)** | **Project Type** | **Key Projects in Execution** | |------------------|-------------------------------| | **Warships** | - **Project 15B (Visakhapatnam-class)**: 4 stealth destroyers (1 delivered) <br> - **Project 17A (Nilgiri-class)**: 4 stealth frigates underway <br> - **Next Generation OPVs**, Fast Patrol Vessels, Training Ships | | **Submarines** | - **Project 75 (Scorpene)**: 6 submarines (5 delivered by 2022) <br> - **Vaghsheer-class** (6th Scorpene): advanced stealth, sensor integration, and weapon systems <br> - Bidding for **Project P75(I)** (6 Air-Independent Propulsion submarines) | | **Heavy Engineering** | - Offshore platforms and pipelines for **ONGC** (₹7,000 crore order) <br> - Multi-Purpose Vessels using digitalized workflows | | **Exports** | - **6 Hybrid Multi-Purpose Vessels** to Denmark (~₹715 crore) <br> - Export orders for valves, inspection services, and MRO <br> - Pursuing order for **4 hybrid MPPVs (7,500 DWT)** from Navi Merchants | | **Defense Repair & MRO** | - **INS Shankush** Medium Refit & Life Certification <br> - **Scorpene Submarine MRO for Malaysian Navy** <br> - **MI-17 Helicopter MRO** for Nepalese Army <br> - **US Navy Voyage Repairs** via Master Repair Agreement | --- ### **Strategic Expansion & Growth Initiatives** #### **1. International Expansion** - Signed a **definitive agreement to acquire 51% stake in Colombo Dockyard PLC (Sri Lanka)** for **USD 52.96 million (₹452 crore)** — MDL’s first international acquisition. - Strategic partnership with **Russia’s Zvezda Shipbuilding Complex** for long-term export opportunities. - Actively marketing vessels (OPVs, corvettes, floating docks) to **Africa, Latin America, Southeast Asia, and Middle East**. #### **2. Global Export Push** - Export portfolio includes: - New build vessels (civilian & military) - Warship/submarine refits and repairs - Pressure hull sections for Scorpene-class submarines - AI-based inspection tools, autonomous drones, eco-boats - Leveraging **EXIM Bank Lines of Credit (G2G)** and **sovereign-guaranteed B2B deals**. - Engaging Indian embassies and agencies to secure contracts at **DefExpo, Aero India**. #### **3. Greenfield Expansion at Nhava** - Developing a **37-acre greenfield shipyard** in phases to support large vessels and submarines. - Investing in: - **12,000-ton Floating Dry Dock** (under construction) - New **submarine launch facility, blasting & painting chamber** - **Shiplift, wet basin, workshops, ship repair center** - Acquired **15 additional acres** from Mumbai Port Authority (MPA) for expanded infrastructure. #### **4. Skill & R&D Development** - Establishing a **Skill Development Hub and Apprentice Training School** at Gavhan, Navi Mumbai. - Collaborates with **IITs (Bombay, Madras, Hyderabad, Indore), IISc Bangalore, and startups** via **iDEX**. - Secured **two patents** in FY 2023–24 for shaft alignment and propulsion modeling. - R&D spend of **₹96.52 crore** in 2023, with focus on autonomous systems and sustainable marine tech.