The first vessel, Mare Blaticum, with 325 containers on board from Yangon, arrived at the Netaji Subhas Dock under the Kolkata Dock System on Monday.
The vessel will leave the Kolkata Dock System for Yangon tonight with 150 boxes on board.
The service is fortnightly — two voyages a month on an average. From April, it will become weekly, with the deployment of a second vessel on the route.