programsIndian Navy Shortlists TKMS & Navantia for ₹43,000 Cr Project-75I Submarine Deal After Field AIP Trials2026-08-30T05:00:00ZIndian Navy Shortlists TKMS & Navantia for ₹43,000 Cr Project-75I Submarine Deal After Field AIP TrialsVia Indian Navy (Official)Field Evaluation Trials of Air Independent Propulsion (AIP) Submarines Successfully Concluded in Germany & SpainRelated CoverageIndia Advances $5.2 Billion Stealth Submarine Procurement with Tech Transfer Mandate (Reuters)P-75I Submarine Contenders: Analysis of HDW Class 214 vs S-80 Plus Fuel Cell AIP Technologies (Naval News)