Kolkata: South 24-Parganas police busted a sex racket from Sonarpur and arrested four persons including three women for their alleged involvement in the incident.This comes barely a month after a similar sex racket had been busted in the same district. Acting on a tip off, the police from Sonarpur conducted a raid at a house situated in Bose Pukur area on late Tuesday night.Police came to know that a sex racket was operating from a house situated in the area and decided to carry out an operation. The locals told police that people from outside used to visit the house till late night. On holidays, more number people used to visit the house and this had aroused the suspicion of the locals.The owner of the house Samir Mondal has also been arrested in this connection. The investigating officers recovered some liquor bottles and some hard cash from the possession of the accused. According to the preliminary investigation, police suspect illegal activities was going on from the house for quite sometime.Police are conducting raids at various places and bars in the district following the incident. Police came to know that the house owner used to hire these women from various parts of the state and outside for running the business. Police are conducting a detailed probe in this regard. They will crack down on these sex rackets gradually if there is any in the district. The accused admitted their involvement in the racket.