India–Germany Submarine Deal under Project-75I
Why in News?
India and Germany are in the final stages of negotiations for a major submarine deal under Project-75I.

Key Highlights
Project-75 (India), or P-75(I), is a major Indian Navy program to indigenously build six advanced conventional diesel-electric attack submarines.
- Project Name: Project-75I
- Total Submarines: 6
- Estimated Cost: $8 billion
- Foreign Partner: Germany.
- Equipped with Air Independent Propulsion (AIP)
What is Air Independent Propulsion (AIP)?
A technology that allows submarines to operate without surfacing for oxygen Enhances:
- Stealth capability
- Underwater endurance
Critical for non-nuclear submarines
Exam Tip:
AIP = Longer underwater stay without oxygen








