India is set to achieve a significant milestone in indigenous submarine technology as the Defence Research and Development Organisation’s (DRDO) fuel-cell-based Air Independent Propulsion (AIP) system is scheduled to be installed on INS Khanderi during its refit at Mazagon Dock Shipbuilders Ltd in mid-2027.Defence Secretary Rajesh Kumar Singh said the upgraded submarine is expected to begin sea
India’s Indigenous AIP Submarine Set For 2027 Sea Trials, Induction Planned In 2028
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