Thiruvallur district officials on Saturday rescued 317 bonded labourers, including 88 children, hailing from impoverished tribal districts of Odisha, from a brick kiln in Poochetti village.
This was the same kiln from where 333 bonded labourers were rescued in February last year.
According to The Times of India, the officials got a tip off after one of the labourers was admitted to Stanley hospital, officials said.
The raid was conducted by the Revenue Divisional Officer (RDO) S Jeyachandran in assistance with an NGO.