Several conditions have also been laid, including installing CCTV cameras, basic educational qualification for employees and time of functioning. As per the new norms, the massage services should not be provided behind a locked door and external doors should be kept open during the working hours. Sexual activities should not be allowed inside the centres. Trade licences for the beauty parlours were brought in following a HC direction in 2014 asking the government to bring the massage centres and beauty parlours under the legislation “so that the public order, decency and morality maintained”. Meanwhile, Chennai Corporation officials sealed 20 shops in Teynampet zone for functioning without trade licence, on Saturday. “Raids were conducted in Triplicane, Mylapore and Thousand Lights,” an official said.