"42 of them were released today", Sri Lankan fisheries ministry spokesman Narendra Rajapaksa said.
The release ordered by a judicial magistrate at Oorkavalthurai, came ahead of talks to be held tomorrow here between the Indian and Lankan fishing delegations.
It is the continuation of the bilateral talks that began in New Delhi mid January.
The remand was extended four times before they were released today.
Rajapaksa said the Indian delegation of 17 fishermen and 11 officials are to arrive midnight tonight and that Sri Lanka will field a similar numbered team.
"We are trying to settle the issue with the Indian central government through diplomatic channels", Gunaratna said.
Sri Lanka had seized some 40 Indian fishermen and over 160 fishermen despite the agreements reached at talks held in Chennai in January.