This man-made island was created in 1933 by sand dredged while deepening the backwaters for the Cochin Port, under the direction of Sir Robert Bristow. A while back the Airport, Sea port and the railway terminus (Cochin Harbour Terminus) were situated on this island.

Today, it is the home of the Cochin Port and the headquarters of the Sourthern Naval Command. The airport continues to be the naval air station, while the main airport has been moved to Nedumbassery, 30kms north-east of Cochin. Most of the trains now terminate at Ernakulam Junction instead of Cochin Harbour Terminus.