Kalvari-class Submarine (Scorpène / Project 75)
Kalvari to Vagsheer — six Scorpène boats built at Mazagon Dock; three additional boats and indigenous air-independent propulsion are the next phase.
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Specifications
Displacement
1,775 tonnes (submerged)
Length
67.5 m
Speed
20 knots submerged
Endurance
50 days
Armament
6 × 533 mm tubes; 18 torpedoes / Exocet SM39
Upgrade
DRDO AIP plug from 2025-26 refits
Capability index
Relative 0–100 index across our database for quick comparison; not an official rating.
Speed index — 35/100
Range index — 60/100
Payload index — 55/100
Tech index — 78/100