It is a better idea to complete ur masters there and come here to join the Grad course. There will be lots of lafada and inconveniences if you come on for undergrad. So just don't rush, be cool, prepare well and come. It will be lot better if you push little hard to get scholorship. We generally think like lets enter US first and j hola dekha jayeka but I suggest you to be patient and prepare well and come here.

Good luck