The city police have busted a baby selling racket and arrested eight persons, including six women, in this connection, an official said today. Acting on a tip off, a team of Thane police's crime unit-I kept a watch near a hotel close to the Mulund Check Naka on Sunday evening. The sleuths there spotted a man and a woman carrying a nearly one-month old boy in their arms and moving in a suspicious manner, senior police inspector Nitin Thackre said.