The fishermen were arrested near Neduntheevu on Saturday, Fisheries department officials said, adding that one boat was also seized by the Lankan navy.
In a separate incident, the Lankan navy personnel allegedly damaged fishing nets in 20 mechanized boats near Katchatheevu on Saturday, the officials added.
They also allegedly hurled stones and bottles on the Indian fishermen, they said.
Fishermen’s association representative Sesuraja rued the acts of the Sri Lankan Navy, saying damage to the equipment caused distress to the fishermen.