The task force raided an apartment last night and apprehended the accused - N Dhanalakshmi and M Pavani - along with their relatives, ACP (East) D N Mahesh said.
The racket was being operated through a web portal, created by one of the accused and MCA graduate M Siva Reddy, he said, adding that a contact number was posted online to solicit services of call girls.
The ACP said some members of the gang used to pose themselves as marketing executives of a real estate firm and reportedly collected contact numbers of some people whom they contacted through pimps.
Police also rescued four girls, suspected to have been trafficked from various parts of the district, from the apartment and booked the accused under Immoral Traffic Prevention Act.