The project involves fitting Indian warships with Japan’s Unified Complex Radio Antenna (Unicorn) system, which lowers a vessel’s radar profile by combining multiple antennas into a single, compact structure and reducing the exposed surfaces that reflect radar signals.

The naval antenna project would “open a new chapter in our defence technology partnership”, Modi said. “Going forward, we will jointly develop defence technologies that will strengthen regional peace, maritime security and a rules-based order.”

Analysts say the collaboration reflects growing strategic trust as both countries seek closer security cooperation and less reliance on outside powers.