connects Thiruvarur in the west, Nagore in the north, Velankanni in the south and Karaikkal in the east. There are passenger Trains to Trichy, Thanjavur, Mayiladuthurai, Karaikal, Mannargudi and Thiruthuraipoondi. There is a daily express train to Chennai via Mayiladuthurai and Ernakulam via Coimbatore. The are two triweekly trains from Mannargudi to Tirupathi and Velankanni to Goa that passed via Nagapattinam.
The port of Nagapattinam is located in Bay of Bengal in the mouth of river Kuduvayyar. Nagapattinam was the most important port of the Chola empire. All the eastern naval expeditions of Rajendra Chola I (1012-44 CE) were through the port. The port was also widely used by the Dutch, Portuguese and British as one of the major ports in Coramandel Coast for trading purposes. Most of the principal exports to Sri Lanka from the port during the British period were rice, piece goods, live stock, cigars, tobacco and skin. The trade of Nagapattinam was mostly with Sri Lanka, Straits Settlements, Burma and to a small extent to the United Kingdom and Spain. The port also served passenger traffic to Singapore, but was susepended due to a fire accident. The modern day port has a commercial port complex and a dockyard that are protected by a river mouth sand bar facing the port. The port handles only limited amount of edible oil imports. The Nagapttinam lighthouse is the first conventional 20 m (66 ft) high lighthouse tower built inside the port premises by the British in 1869. The port and the lighthouse are maintained by the Tamil Nadu Maritime Board under the Government of India.
The nearest Airport is Tiruchirapalli Airport, located 145 km (90 mi) away from the town
