The arrest comes a day after Tamil Nadu Chief Minister O Panneerselvam asked the Centre to send a "firm message" to the island nation over continued apprehension of the state's fishermen.
Yesterday, seven persons from Pudukottai district were detained for allegedly fishing in their waters and taken to Kangesanthurai Port, along with their boats.
Three groups of fishermen from Pamban near here were arrested last night by the naval men for fishing off Thalaimannar and were detained at the police station there, fisheries department officials said today.
While fishermen in one of the boats managed to get away in their boat, twelve others were caught and taken to Sri Thalaimannar, Lanka, he said.
In his letter to Prime Minister Narendra Modi, Panneerselvam had said that a permanent solution to the fishermen's issue would be in restoring India's sovereignty over Katchatheevu islet.
"It is the consistent stand of the government of Tamil Nadu that a permanent solution to this vexatious problem faced by our fishermen will be possible only by restoring India's sovereigntyover Katchatheevu by securing the right to fish in traditional waters," he had said.
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