Hi Chaitanya,
I suppose applying for the HR course was your decision. And you'd be the best to answer it.
When you choose your career, you should know the reason for choosing it amongst all the others, coz only then will you be satisfied with what you have achieved.
First of all analyse yourself, your personality, your attitude towards life, your strengths and weakness.
Try to understand whether you'd really be happy playing the role of an HR(for which you need to know the role of an HR). or else are you more satisfied doing something else.
The question that you have asked is a very personalized one, and will differ from person to person.
You may get the answer to the question on this site or google, but till you dont believe it or feel it, It would'nt be an answer worth saying.