The city police on Friday nabbed three women suspected to be involved in a child trafficking racket and rescued two children from them.

Following a tip-off from a local resident and an audio clip of the conversation that went viral, the police conducted a covert operation and arrested one of the accused, Vidya, 36, after she arrived on a two-wheeler at Britannia Nagar  in Puzhal with a male child, allegedly for sale. Based on her confession, two others – Rathi Devi, 39, and Deepa, 35 – were nabbed from a house in Menambedu near Ambattur.

The case surfaced after one Karthik alerted the Puzhal police, alleging that a woman had approached him with an offer to sell a child for ₹12 lakh.

On instructions from the police, Karthik continued to engage with the suspect, who demanded ₹10 lakh for the child’s mother and ₹2 lakh as her fee. As he agreed to pay the money, she came to give the child leading to her arrest. Further probe is on.