An Indian Coast Guard ship received them from a Sri Lankan naval ship at the International Maritime Bourdary Line (IMBL) and brought them to Mandapam, Fisheries Department sources said.
Mannar court magistrate Aanandhi Kanagarathinam had yesterday ordered the release of the fishermen.
They were arrested by June 19 and July 4 on charges of crossing IMBL.
Talking to reporters, the fishermen thanked Tamil Nadu Chief Minister J Jayalalithaa and the Union Government for taking efforts for their release.