Trending @Infosys; Digital marketing roles in Infy

How to land in a digital marketing job in infy without prior exp in it. I'm currently in bench after finishing a prod support proj. I want to change My stream to marketing , please guide me on where to start, what are the certificate/skill tags to be done. Whom to approach what to ask. It's really difficult to get reply frm senior project leads or HRs here.