# India-Germany Project 75(I) submarine cooperation

> Live situation record from CLSTR: https://clstr.news/situations/india-germany-project-75i-submarine-cooperation
> Updated: 2026-10-03T17:06:03.000Z. Sources: 5. Developments: 2.

The India-Germany submarine deal under Project 75(I) has reached a stage where terms are finalized on the German side, awaiting internal approval from Indian authorities. The project involves a partnership between Mazagon Dock Shipbuilders Limited (MDL) and Germany’s ThyssenKrupp Marine Systems (TKMS) to construct six next-generation conventional submarines in India.

Estimated to exceed ₹90,000 crore, the initiative focuses on substantial technology transfer to bolster India’s domestic manufacturing. The submarines are expected to feature advanced sensors, stealth capabilities, and Air Independent Propulsion (AIP) technology. Beyond the primary deal, the Indian Navy is also considering the acquisition of three additional Scorpene-class submarines and plans to utilize an indigenous AIP system developed by the Defence Research and Development Organisation (DRDO) for existing vessels.

## Timeline

### 2026-10-03: India nears approval for 80,000 crore rupee submarine project

India nears final approval for Project-75(I), an 80,000 crore rupee initiative to build six advanced submarines in partnership with Germany's ThyssenKrupp Marine Systems.

2 sources. https://clstr.news/cluster/india-nears-approval-for-80000-crore-rupee-submarine-project

### 2026-09-23: India-Germany submarine deal awaits final Indian approval

Germany has finalized its side of a submarine deal with India under Project 75(I), which now awaits Indian internal approvals to proceed with building six submarines and transferring technology.

3 sources. https://clstr.news/cluster/india-germany-submarine-deal-awaits-final-indian-approval

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Cite as: India-Germany Project 75(I) submarine cooperation. CLSTR, https://clstr.news/situations/india-germany-project-75i-submarine-cooperation