Karachi police acting on a tip-off of a Lahore citizen retrieved three kidnapped special children, which included his nephew as well and arrested two women of the child-lifters' gang. Model Colony police said that a special child, Mani, 14 was kidnapped two years ago from Green Town area of Lahore and his uncle Rafique hunting for the lost child came here, when on Thursday, he saw the child with a woman begging at Model Colony and informed the police.