If you're looking to download the movie, I recommend checking out legitimate streaming platforms or purchasing the DVD/ digital copy from authorized sources.
The story revolves around a young man named Aru (played by Suriya), who is a Bharatanatyam dancer and a college student. He falls in love with a girl named Haseena (played by Shruti Haasan), who is a microbiologist. 7 aum arivu movie download