While 13 of the fishermen belonged to Rameswaram, the others hailed from Jadadapattinam in Puduckottai district, P Sesuraja and S Emiret, leaders of Rameswaram Fishermen's Association said.
All the fishermen were arrested near Neduntheevu and their boats, three in number, were taken to Kanagesanthurai in Sri Lanka by the navy personnel, they said.
Tamil Nadu Chief Minister O Panneerselvam had yesterday urged Prime Minister Narendra Modi to send a "firm message" to Sri Lanka over continued detention of the state's fishermen.
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