The workers, belonging to 10 families from Villipuram, Panruti and Vellore, had taken advance from the farm owner to work.
However, they were compelled to work for 12 to 14 hours daily without holidays.
Acting on a complaint, officials rescued them, the sources said, adding, they would be provided assistance by the government as per rules.
Bonded labour is a human rights violation abolished by the Bonded Labour Abolition Act-1976.