Answer:
Reasons are:
Firstly, the reason is to evaluate an interviewee, for this purpose we use interview evaluation form, which includes the initial information related to both interviewee and interviewer. Then it includes different parameters or factors on which an interviewer needs to evaluate the interviewee.
To hire a candidate or to reject a candidate interviewer needs to have solid reasons and need to give remarks why the candidate is rejected or accepted. That is why its important to record the interview.