Dear Dimple,
You could have given little more information about yourself like your qualification, the nature of your industry, type of job that you do in HR, your age etc. It is not a question of certification alone as stated in the my above post, you should get opportunity to implement the knowledge that you gained from the certification course.
By the way, what is that you have done to implement the HR knowledge in your current job? Have you used current job for experimenting something in HR?
Thanks,
Dinesh Divekar