The fishermen from here were fishing near Paruthithurai, when the Lankan naval personnel came and took them to Kangesanthurai port there, they said.
The Joint Director of fisheries department, Nagapattinam district, Amala Xavier, said the fishermen using mechanised fishing boat, were arrested on charges of alleged violation of the International Maritime Boundary Line and fishing in the exclusive zone meant for Lankan fishermen.
Their boat was also impounded, the official said.
The incident comes two days after four fishermen from Pudukottai district and 17 from Karaikal region in Puducherry were arrested by Sri Lankan Navy for allegedly fishing near Neduntheevu in the island nation.
As many as 22 fishermen from the state have been arrested by Sri Lankan authorities since the ban on fishing ended on June 15, fisheries department officials said.