Dentsu International APAC has elevated Prerna Mehrotra as CEO of media for APAC. She will report to Ashish Bhasin, chief executive officer, Dentsu APAC, and Peter Huijboom, global chief executive officer for media and global clients. She has been overseeing brands such as iProspect, Carat, Vizeum, Amplifi, Amnet and Posterscope. In her new role, Mehrotra…