The submarine left the Mumbai harbour on a patrolling mission, Navy sources said here, stressing that the vessel was in good condition and had not suffered any damage.
The INS Sindhughosh is a Kilo Class submarine of the Navy procured from Russia.
Last week on Friday, the submarine had encountered a situation where there was very less water in the harbour but held to its position using ropes and other means but was not grounded, they said.