Hi Shalini,
The role of an HR Manager may even extend to that of legal and statutory compliances. However, it depends totally on the roles and responsibilities demanded by that position, which may vary from company to company.
Say in some companies there may be only one manager who has a dedicated team with him. In this case, he will play a supervisory role and will be initiating things and guiding his team for target completion, be it the case of recruitment for filling any urgent vacancy or adhering to the training calendar, etc.
Similarly, in some companies, the manager may have a boss, and his roles are defined accordingly. You may decide which case is yours.
Please understand that the role of an HR is primarily the same everywhere, i.e., Recruitment, Training & Development, Compensation, Performance Management System, Legal, etc. It is only the level at which one is working in the capacity of HR where the difference in roles and responsibilities comes.
Hope this helps.
Regards,