imho apel is a good measurement of accepting a student for a master's degree without a first degree.

however, I'm unsure whether apel is in effect for all institutions at this point of time.

nevertheless, you may skip apel by taking an external MBA programme.

What is your primary driver for wanting to take up MBA in the first place?

top business schools usually take a holistic approach in reviewing candidate application, since tens of thousands of student applying for a very limited placement in the program.
Thus, not only you should score well in your GMAT (>750), you also need to have a proven track record such as graduated from renowned university, good GPA as well as relevant job experience.