P-75I Submarine Project: Indigenous Construction Begins
The construction of the first submarine under the P-75I project has officially commenced at Mazagon Dock Shipbuilders Limited.
2-Minute Summary (TL;DR)
- Construction of the first P-75I submarine started at MDL.
- Submarines will feature Air-Independent Propulsion (AIP) technology.
- Part of the Indian Navy's long-term submarine modernization plan.
- Aims to boost indigenous defense manufacturing capabilities.
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. |
What to Memorize from This Topic
- Military exercise: name, participating countries, location, purpose
- Defence acquisition: system name, purpose, procured from which country
- Appointments: new Chief of Army Staff, CNS, CAS, and their tenures
- Indigenization: 'Made in India' defence milestones, first-ever systems
- Strategic policy: recent changes to defence export policy, FDI limits in defence
Practice Questions
Q1. Which technology allows conventional submarines to stay submerged for longer periods?
- Nuclear Propulsion
- Air-Independent Propulsion (AIP)
- Diesel-Electric Drive
- Gas Turbine
Explanation: Air-Independent Propulsion (AIP) technology allows conventional submarines to remain submerged for much longer than standard diesel-electric submarines.
Q2. Where are the P-75I submarines being built?
- Garden Reach Shipbuilders
- Mazagon Dock Shipbuilders
- Cochin Shipyard
- Goa Shipyard
Explanation: The P-75I submarines are being built at Mazagon Dock Shipbuilders Limited (MDL) in Mumbai.
How to Prepare Defence for Government Exams
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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