The 18 accused, including owners and managers of restaurants, hotels and a garage in the area, were booked under relevant sections of Juvenile Justice Act, Child Labour Act and Indian Penal Code, police said.
The raid was conducted by Assistant Commissioner of Police Vasant Dhobale of Social Service Branch in coordination with the local civic body and some NGOs.
The rescued children aged between 8 and 14 years, many of whom appeared to be from Uttar Pradesh, were sent to a remand home, police said, adding that their parents would be contacted soon.