Fishermen from Rameswaram were attacked near the international maritime boundary line, allegedly by Sri Lankan navalmen who threw stones at their boats damaging about 50 of them, officials said on Tuesday.
Officials quoting fishermen said the Lankan navy personnel started flashing torches and warned them against entering their territory and allegedly attacked the boats.
The fishermen had put out to sea on Monday but returned without fishing, P Sesuraja, Tamil Nadu fishermen Association Secretary, said.