The fishermen had been arrested on July 30 off the eastern coast of Sri Lanka and handed over to the police.
On being produced before Trincomalee Magistrate U L D Arshad, instructions were issued to the navy to hand over the fishermen to Indian authorities at the International Maritime Boundary Line.
However, a decision on their release of their boats has been deferred until October 17.
The ruling came after last week's announcement by the Sri Lankan fisheries minister Rajitha Senaratne that Indian fishing trawlers which breach the IMBL in future would be confiscated.