hello rashmi,
it is shivendra, SAP HR is an ERP but far exhaustive, it has 74 modules in all, HR module is one of these, it is real time software to manage and promote the organization, there are three profiles u can be able to work in after being certified, these are the implimentation, the support, and the en user profile, only the siemence and the genovate are authorised to certify you in india and the eligibility for this is a corporate experience of 2+ years, it is very costly, as far as the career prospect is meant it is great...... a green field..... more u can fin through some SAP site over net....
with regards
shivendra