Kolkata: Eight persons, including two customers, were apprehended on Tuesday night from a brothel which used to operate in disguise of a luxurious spa.Out of the three girls who were engaged in the business two are from Thailand. According to sources, on Tuesday evening the anti-human trafficking squad of Kolkata Police got a source information about a sex racket being operated under the banner of a spa identified as The Thai Retreat. Based on the information, police raided the spa located at 56 Sarat Bose Road in Ballygunge area and found two customers in compromising position with two girls. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataDuring the raid, police found two girls from Thailand who were brought as sex workers. It is alleged that a businessman who went to Thailand sometimes before proposed the Thai girls who used to work in a spa to come to Kolkata and work here. As per the contract two Thai girls came to the city in tourist visa and were allegedly engaged as sex workers. Apart from the two customers, the manager, assistant manager and a pimp was were also arrested on Tuesday night. However, police came to know that there are several spa and beauty parlours are running across the city which run sex rackets. Thai girls working as sex workers is a new trend which was completely unknown to the police. After finding out the details, police are checking with the spas in the city in order to put an end to flesh trade.