Fisheries department officials, quoting panchayat representatives of Akkaraipettai hamlet said the fishermen put out to sea in a mechanised boat on June 16.
While fishing off Kodiakarai coast in Indian waters on June 19, some Sri Lankan Navy personnel in a fast craft reportedly abducted them and took them to Kangesanthurai port in Sri Lanka.
Other fishermen in the vicinity returned ashore and conveyed the news to villagers, who launched an indefinite fast, demanding that the state and central governments take steps to secure release of the fishermen.