The seven, part of groups of fishermen who put out to sea from Rameswaram in TN, have been taken to Talaimannar in northern Sri Lanka, Rameswaram Fishermen Association president T Sesuraja said.
The arrest came on the first day of fishermen resuming their work after the end of a 45-day-long annual fish breeding season ban on fishing using mechanised boats.
Sesuraja said the other fishermen who returned to the shores got a good harvest of prawns and other varieties of fish.
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