Your doubt is not clear to me. Why do HR people get an incentive? I mean, they are also employees of the company and not on contracts, I hope. Incentive means people work with extraordinary performance. If any employee works like this, he/she will get it with the proper approval of the HOD. On what basis are you asking, I do not know. Please send an email to my email ID: [Email Removed For Privacy Reasons].
Regards,
Venkat
Bangalore