The Indian Navy's first submarine equipped with advanced technology to enhance its underwater endurance and stealth is ...
Second of six operational Kalvari submarines to become first in class to be fitted with endurance- and stealth-enhancing technology ...
The Indian Navy is enhancing its underwater capabilities with the installation of an indigenous Air-Independent Propulsion (AIP) system on the INS Khanderi submarine by the end of 2026.
India will retrofit INS Khanderi, the second Kalvari-class submarine, with an indigenous Air-Independent Propulsion (AIP) ...
July 29, 2025: South Korea has 23 Air Independent Propulsion/AIP submarines while North Korea maintains a similar number of older subs. North Korea is building a nuclear powered SSBN, such a boat ...