Hello,  

 It will hamper if you don't have any work experience in these years. If you can provide work experience certificate or short term course certificate for these years, then it can cover this year gape. 

Good Luck!

It can hamper in placements if you have simply wasted those 2years.

You can rather show sone certification courses, Internships, Volunteering experience which you have done in those 2 years.
You cannnot say that you wasted 2 years just for preparation into MBA.


By this way it shouldn't be problem furtger.

Yes they ask for the reason of gap being taken...If it's valid like some health aid with a proof then it would be acceptable else they tend to question you in multiple ways...