The latest detention came on a day when Tamil Nadu government made public a letter written by Chief Minister Jayalalithaa two days ago to Prime Minister Narendra Modi voicing concern at recurring instances of such arrests.
Fisheries officials said that Lanka navy personnel late last night surrounded a boat belonging to one Palraj and took him into custody along with three others.
With the latest arrest, the total number of Indian fishermen in Sri Lankan custody has risen to 51.
The four fishermen were taken to Thalaimannar in Lanka along with their boat, they said, adding that the fishing nets of several boats were also damaged.
Most of the fishermen returned to the shore without any catch in view of the incident, the officials said.
Mechanised Boat Fishermen Association President T Sesuraja, too, alleged that the Lankan personnel damaged the fishing nets of several boats and threatened the fishermen against operating in the island nation's territory.
Meanwhile, calling for the fishermen to be allowed to pursue their vocation in "their traditional fishing waters of Palk Bay", Jayalalithaa urged Modi that such instances should cease immediately.
She also asked him to take steps to secure the release of 47 fishermen, including six persons arrested on December 19.
In her letter dated December 20, Jayalalithaa said, "The frequency of apprehensions and abductions of our fishermen is on the increase. These recurrent instances of attacks upon, and abductions of, our fishermen on the high seas in the Palk Bay should be stopped immediately."
She reiterated her government's stand that the Maritime Boundary Line (IMBL) with Sri Lanka "cannot be treated as a settled question".
Jayalalithaa noted that she had moved Supreme Court in her personal capacity questioning the validity of two agreements between India and Sri Lanka ceding Katchatheevu islet to the island republic in the 1970s.
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Meanwhile, a report from Rameswaram, quoting T Sasuraja, Rameswaram fishermen organisation president, said the four fishermen were remanded to judicial custody till January 4 by a court in Sri Lanka.
