Defence Indigenisation: Project 75I Submarine Program and Strategic Naval Capabilities Expansion

Defence Indigenisation: Project 75I Submarine Program and Strategic Naval Capabilities Expansion

Defence indigenisation under the Project 75I Submarine Program involves building advanced conventional submarines domestically to reduce foreign dependency and expand strategic naval capabilities. This topic is vital for government exam aspirants as it forms a core part of current affairs, national security, and defence technology questions in tests like UPSC and State PCS.

Background and Evolution of India Submarine Fleet

India operates a mix of Russian-origin Kilo-class and German-origin Shishumar-class submarines alongside the domestically constructed Scorpene-class submarines built under Project 75. The aging fleet requires urgent modernization to counter growing maritime security challenges in the Indian Ocean Region. Strategic planners initiated new projects to bridge capability gaps and enhance underwater warfare punch.

Historical Context of Naval Modernization

• The 30-year submarine building plan approved in 1999 aimed to construct 24 submarines.
• Project 75 and Project 75I form the twin pillars of this long-term naval acquisition strategy.
• Indigenisation efforts focus on acquiring critical technologies through strategic partnerships with global shipbuilders.

Key Features of the Project 75I Submarine Program

The Project 75I Submarine Program envisages the construction of six advanced conventional submarines equipped with Air Independent Propulsion systems. These systems allow submarines to remain submerged for longer durations, significantly increasing their stealth and operational range. The project utilizes the Strategic Partnership model to encourage private sector participation alongside public shipyards.

Core Technical Specifications

• Requirement of Air Independent Propulsion for extended underwater endurance.
• Advanced torpedoes and anti-ship missile integration capabilities.
• Modern counter-measure systems and acoustic stealth features.

Strategic Significance for National Security

Expanding strategic naval capabilities is crucial for safeguarding India maritime trade routes and countering rival naval presence in the Indo-Pacific. A robust submarine fleet acts as a powerful deterrent against hostile naval forces and secures maritime borders. Self-reliance in submarine manufacturing ensures uninterrupted supply chains and reduces vulnerability to geopolitical pressures.

Key Strategic Advantages

• Enhanced power projection across the Indo-Pacific region.
• Protection of critical undersea communication cables and energy lanes.
• Technological spillover benefits for domestic engineering and manufacturing sectors.

Challenges in Defence Indigenisation

Implementing large-scale defence projects involves complex technology transfers and lengthy bureaucratic clearance processes. High costs associated with research, development, and advanced manufacturing pose financial hurdles. Delays in finalizing foreign technology partners and meeting strict indigenous content requirements often slow down program execution.

Major Implementation Hurdles

• Complexities in transferring sensitive stealth and propulsion technologies.
• Dependency on foreign original equipment manufacturers for critical raw materials.
• Need for skilled workforce training and specialized shipyard infrastructure upgrades.

Overview of Project 75 and Project 75I

A comparative look at India major conventional submarine programs helps clarify current naval acquisition trends for exam preparation.

Table showing comparison between Project 75 and Project 75I:

Frequently Asked Questions

1. What is the primary objective of the Project 75I Submarine Program?
   The primary objective is to construct six advanced conventional submarines domestically equipped with Air Independent Propulsion systems, enhancing India underwater combat capabilities and reducing foreign military dependence through strategic industrial partnerships.
2. How does Air Independent Propulsion benefit modern submarines?
   Air Independent Propulsion allows conventional diesel-electric submarines to remain submerged underwater for significantly longer periods without surfacing, thereby increasing their tactical stealth, operational range, and survivability against enemy detection.
3. What is the Strategic Partnership model in Indian defence acquisition?
   The Strategic Partnership model is a policy framework that encourages private sector participation alongside public shipyards to manufacture major defence platforms in India through joint ventures with foreign technology providers.
4. How many submarines are planned under India 30-year submarine building plan?
   The approved 30-year submarine building plan envisions the construction of a total of 24 submarines, split equally between conventional and nuclear-powered vessels, to maintain a formidable underwater deterrent force.
5. Which class of submarines was built under the earlier Project 75?
   Project 75 resulted in the construction of the Kalvari-class diesel-electric attack submarines, based on the Scorpene design, built at Mazagon Dock Shipbuilders Limited in collaboration with Naval Group of France.
6. Why is defence indigenisation important for national security?
   Defence indigenisation ensures self-reliance in military equipment manufacturing, protects national supply chains from external geopolitical disruptions, reduces foreign exchange outflow, and boosts domestic technological innovation and employment.

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