P-75I Submarine Project: Indigenous Construction Begins
The construction of the first of six advanced conventional submarines under the P-75I project has officially commenced at Mazagon Dock Shipbuilders Limited (MDL) in Mumbai. This significant development marks a major step in India's indigenous defence manufacturing, aiming to equip the Indian Navy with Air-Independent Propulsion (AIP) enabled submarines to enhance maritime security in the Indian Ocean Region. The project aligns with the 'Make in India' and Atmanirbhar Bharat initiatives, reinforcing the nation's strategic self-reliance in defence.
2-Minute Summary (TL;DR)
- The P-75I project involves the indigenous construction of **six advanced conventional submarines** for the Indian Navy.
- Construction of the **first P-75I submarine** has commenced at **Mazagon Dock Shipbuilders Limited (MDL)**.
- These submarines will feature **Air-Independent Propulsion (AIP) systems** for extended underwater endurance.
- The project operates under the **Strategic Partnership (SP) Model** of defence procurement.
- It is a crucial component of the **Indian Navy's 30-year submarine building plan**.
- The P-75I aims to enhance India's **maritime security** and strategic capabilities in the **Indian Ocean Region**.
- The project emphasizes **'Make in India'** and **Atmanirbhar Bharat** initiatives in defence manufacturing.
- It follows the successful **Project-75 (Kalvari-class)**, which delivered six Scorpene-class submarines.
- The P-75I submarines will incorporate advanced stealth features and combat management systems.
Why In News
The recent commencement of construction for the first submarine under the P-75I project at Mazagon Dock Shipbuilders Limited marks a critical juncture in India's indigenous defence manufacturing capabilities. This development signifies the transition from planning to execution for a crucial component of the Indian Navy's modernization strategy, making it a significant current affairs topic.
Syllabus Connection
This news connects to India's strategic defence indigenization efforts, the 'Make in India' initiative in the defence sector, and its implications for national security, economic growth, and technological self-reliance. Students should revise defence procurement policies, public-private partnerships, and the role of indigenous technology in strategic autonomy.
Prelims vs Mains — What to Focus On
| Aspect | Prelims | Mains |
|---|---|---|
| Project Name | Project-75 (India) or P-75I | Strategic importance of indigenous submarine construction for maritime security. |
| Lead Shipyard | Mazagon Dock Shipbuilders Limited (MDL) | Role of public sector undertakings in defence indigenization and technology transfer. |
| Key Technology | Air-Independent Propulsion (AIP) system | Technological advancements enhancing submarine endurance and stealth capabilities. |
| Number of Submarines | Six conventional submarines | Impact on Indian Navy's fleet strength and regional power projection. |
| Policy Context | 'Make in India' in Defence, Strategic Partnership Model | Government's push for self-reliance in defence manufacturing and its economic implications. |
How This Topic is Tested in Competitive Exams
| Exam | Frequency | Approx. Marks | What Gets Asked |
|---|---|---|---|
| UPSC / State PCS | Medium | 4–8 | UPSC focuses on strategic aspects: defence policy, Indo-Pacific, border issues, and bilateral defence deals. |
Key Facts to Remember: P-75I Submarine Project: Indigenous Construction Begins
- The P-75I project involves the indigenous construction of **six advanced conventional submarines** for the Indian Navy.
- Construction of the **first P-75I submarine** has commenced at **Mazagon Dock Shipbuilders Limited (MDL)**.
- These submarines will feature **Air-Independent Propulsion (AIP) systems** for extended underwater endurance.
- The project operates under the **Strategic Partnership (SP) Model** of defence procurement.
- It is a crucial component of the **Indian Navy's 30-year submarine building plan**.
- The P-75I aims to enhance India's **maritime security** and strategic capabilities in the **Indian Ocean Region**.
- The project emphasizes **'Make in India'** and **Atmanirbhar Bharat** initiatives in defence manufacturing.
- It follows the successful **Project-75 (Kalvari-class)**, which delivered six Scorpene-class submarines.
- The P-75I submarines will incorporate advanced stealth features and combat management systems.
Practice Questions
Q1. The P-75I project, recently in news for the commencement of its first submarine construction, is primarily aimed at building what type of naval vessel?
- Aircraft Carriers
- Nuclear-powered Submarines
- Conventional Submarines
- Destroyer Warships
Explanation: Project-75 (India) is specifically designed for the indigenous construction of six advanced conventional (diesel-electric) submarines equipped with Air-Independent Propulsion (AIP) systems. This distinguishes it from nuclear submarine projects, which fall under different classifications.
Q2. Which Indian shipyard has commenced the construction of the first submarine under the P-75I project?
- Cochin Shipyard Limited
- Garden Reach Shipbuilders & Engineers
- Hindustan Shipyard Limited
- Mazagon Dock Shipbuilders Limited
Explanation: Mazagon Dock Shipbuilders Limited (MDL) in Mumbai is the designated Indian shipyard for the construction of the P-75I submarines, in collaboration with a foreign original equipment manufacturer (OEM). MDL has a long history of building naval vessels, including the earlier Project-75 (Kalvari-class) submarines, making it a key player in India's naval indigenization efforts.
Q3. A key technological feature of the P-75I submarines that allows for longer underwater endurance is the inclusion of:
- Nuclear Reactors
- Air-Independent Propulsion (AIP) systems
- Advanced Sonar Domes
- Vertical Launch Missile Systems
Explanation: Air-Independent Propulsion (AIP) systems are a critical requirement for the P-75I submarines. AIP technology allows conventional submarines to operate submerged for significantly longer periods than traditional diesel-electric submarines, reducing the need to surface or snorkel for atmospheric air and thereby enhancing stealth and operational range.
Q4. The P-75I project is being executed under which specific model of defence procurement in India?
- Buy (Global) Model
- Buy and Make (Indian) Model
- Strategic Partnership (SP) Model
- Lease Model
Explanation: The P-75I project is a flagship initiative under the Strategic Partnership (SP) Model, introduced in 2017. This model aims to foster indigenous manufacturing capabilities by enabling private Indian companies to tie up with foreign Original Equipment Manufacturers (OEMs) for high-technology defence platforms, ensuring technology transfer and local production.
Q5. What is the primary objective of the P-75I project in the context of India's maritime strategy?
- To develop India's first indigenous aircraft carrier
- To replace India's aging surface fleet
- To enhance India's underwater warfare capabilities and maritime security
- To establish a naval base in the Arctic region
Explanation: The P-75I project is crucial for bolstering the Indian Navy's underwater warfare capabilities. By adding six advanced conventional submarines, it aims to counter the growing naval presence in the Indian Ocean Region and maintain a credible deterrent, thereby enhancing India's overall maritime security and strategic depth.
How to Prepare Defence for Government Exams — P-75I Submarine Project: Indigenous Construction…
For every military exercise, note: India + Partner country + Purpose (bilateral or multilateral). Questions are pattern-based.
Defence indigenization ('Atmanirbhar Bharat in Defence') is a high-priority topic for 2025–26. Focus on systems developed by DRDO or HAL.
Chiefs of defence services change periodically. Always keep the current CDS, Army Chief, Navy Chief, and Air Chief up to date.
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