Dear Anu,
I can appreciate your interest in changing your career. The first question I have for you is why are you wanting a career in HR and how will you re-position yourself to pursue this career? What was the focus of your MBA; general or specific emphasis on HR? As someone who has guided a lot of people through various career changes, I advise people to have a really good understanding of why you want to change, how you will contribute to the new field, and how your past experiences have provided you with transferable knowledge and abilities.
There are many ways to break into a new field, depending on one's circumstances and one's resources, but first, you have to have a clear idea of what you want and what you have to offer.
Regards,
Bruncha