Before the storm, there was a train service up to Dhanushkodi called Boat Mail from Madras Egmore Now Chennai Egmore and the train linked to a steamer for ferrying travellers to Ceylon. During the 1964 storm a huge wave of about 20 ft came crashing on the town from Palk Bay/Strait east of the town and destroyed the whole town, a passenger train, and the Pamban Rail Bridge -tragically all happening at the dead of the night.
The storm was unique in many ways. It all started with a formation of a depression with its centre at 5N 93E in South Andaman Sea on 17 December 1964. On 19 December it intensified into a cyclonic storm. The formation of depression at such low latitudes as 5N is rare in Indian seas though such cases of typhoon development within 5 degrees of Equator has been reported in North Western Pacific. The Rameshwaram storm was not only formed at such low latitude but also intensified into a severe cyclonic storm at about the same