India, a nation with a vast coastline and growing maritime interests is actively bolstering its naval capabilities. A critical project in this endeavour is Project 75i India (Project 75i), an ambitious initiative to construct a new fleet of next-generation indigenous submarines. Let’s delve deeper into this project and explore how it’s set to revolutionize India’s naval defence.
Understanding Project 75i
Project 75i, sanctioned by the Indian government in 2017, focuses on designing and constructing six conventional, diesel-electric attack submarines. These submarines will be built entirely by Indian shipyards in collaboration with a foreign technology partner. This “strategic partnership model” aims to fulfil India’s immediate submarine requirement and achieve significant technological self-reliance in submarine construction.
Key Features of Project 75i Submarines

Here’s a glimpse of the advanced features envisioned for these submarines:
- Modern Combat Systems: Project 75i submarines will be equipped with cutting-edge combat management systems, integrating sensor suites, weapon control systems, and communication networks for enhanced situational awareness and operational efficiency.
- Superior Stealth Capabilities: These submarines are design to be exceptionally quiet, incorporating advanced acoustic quieting technologies to minimize their underwater noise signature. This stealth advantage will be crucial for undetected operations and tactical surprises.
- Improved Weapon Systems: Project 75i submarines are expect to be armed with a potent arsenal of weapons, including torpedoes, anti-ship missiles, and possibly even land-attack cruise missiles.
- Increased Endurance: The submarines may incorporate Air Independent Propulsion (AIP) systems, significantly extending their submerged endurance and operational range. This allows them to stay underwater longer without surfacing, enhancing their survivability and mission effectiveness.
Benefits of Project 75i
Project 75i holds immense strategic significance for India. Here’s how it will revolutionize the nation’s naval defence:
- Enhanced Deterrence: A robust submarine fleet strengthens India’s deterrence capabilities against potential maritime threats. The silent presence of these submarines in critical areas can deter hostile actions and maintain regional stability.
- Improved Anti-Submarine Warfare (ASW) Capabilities: Project 75i submarines will bolster India’s capacity to counter enemy submarines, protecting vital sea lanes and deterring underwater threats.
- Strategic Independence: This project fosters indigenous submarine design and construction expertise, reducing dependence on foreign suppliers and ensuring a steady stream of modern submarines for the Indian Navy.
- Economic Boost: Project 75i catalyzes technological advancement and economic growth within the Indian shipbuilding industry. It creates numerous skilled jobs and stimulates the development of a robust domestic underwater defence ecosystem.
Project 75i: Competitive Foreign Technology Partners
- Discuss the selection process for the foreign technology partner.
- Briefly mention some leading contenders and their strengths in submarine design and construction.
- You can mention companies like Naval Group (France), ThyssenKrupp Marine Systems (Germany), Rosoboronexport (Russia), etc., without going into excessive detail.
- Briefly explain each contender’s potential benefits and considerations (e.g., proven technology, transfer of expertise, etc.).
Project 75i Beyond the First Six Submarines

- Discuss the potential future of Project 75i beyond the initial six submarines.
- Mention the possibility of follow-on orders with potential improvements based on experience with the first batch.
- I’d like to briefly touch upon a potential “Project 75I+” with even more advanced features, like AIP systems or more significant displacement.
- Highlight how Project 75i can pave the way for future indigenous submarine development programs in India.
Upcoming Project 75i: Going Forward
When it comes to marine security and India’s pursuit of self-reliance, Project 75i is a giant stride ahead. While challenges like technological complexities and timely execution exist, the successful completion of this project will solidify India’s position as a significant naval power in the region.
Project 75i signifies a paradigm shift in India’s approach to naval defence. It’s a testament to the nation’s commitment to indigenous development and its aspirations for a more substantial maritime presence. The successful execution of this project will equip the Indian Navy with a potent underwater force, ensuring the security of its vast coastline and safeguarding its maritime interests.
A leading consultancy services company specializing in maritime and aviation offers expertise and insights. Visit their website to see how they can help you navigate the ever-changing nature of these industries.



