Describing it as a minor incident, Rear Admiral (retd) A K Verma, CMD of Garden Reach Shipbuilders & Engineers Limited (GRSE), told PTI, "The river channel is narrow and the ship had a little drift while turning."
"Negotiating the narrow channel is a challenge and there was a little control problem leading to the ship getting slightly grounded on the river bank near Geonkhali," he said.
"The ship is most likely to come out during high tide post midnight," he said.
Verma said that a pilot of the Kolkata Port Trust was on board for negotiating the ship through the river till it met the Bay of Bengal.
The channel through which ships sailed to and from the Kolkata Port was very narrow because of heavy silting and there were several prior instances of vessels being stuck.
Geonkhali is about 70 km from here.