Small-time Tamil actress Caroline Mariya Asan was arrested in a prostitution case from a five-star hotel in Viman Nagar on Saturday evening, police said on Sunday."We laid a trap and sent a decoy customer. Caroline is quite popular in Chennai. She has played heroine in movies- Rain, Wadachalam and others," Senior Inspector (Crime Branch) Bhanupratap Barge said. According to him, the actress had done modelling assignments for diamond and textile companies in Chennai and Bengaluru. A case has been registered against her at Viman Nagar police chowkie and her manager and film studio owner M. Rajkumar (32) has also been arrested, Barge added.