Hello there,
Well a 2.5 GPA doesn’t mean goodbye to the MBA, but it does mean that Top 10 will likely be out of range.
If you are serious about an MBA, then the first most important step is that you do really well on the GMAT. With a very high GMAT you can make up for a lot.
So don’t worry about what you can’t change right now, but instead focus your energies on the GMAT.