Sixteen fishermen of Rameswaram and their four boats were detained on Monday allegedly by Sri Lankan naval personnel when they were fishing near the islet of Katchatheevu.
Indian fishermen trawling near Katchatheevu were in for a big surprise on Sunday when Sri Lankan navalmen not only allowed them to fish but also offered them soft drinks and sweets.
Two courts in Sri Lanka on Monday ordered the release of 163 Tamil Nadu fishermen, arrested by naval personnel of the island nation in the past two months and lodged in prisons there, a top functionary of the local fishermen's organisation said.
With the latest arrest, the number of Tamil Nadu fishermen in Sri Lankan custody has risen to 61.