Please do an appraisal review process. If HR is fully convinced that appraisal process
is carried out in a right manner, (without any ambiguity),, then
call the employee and hold a discussion and convince him to accept the rating awarded to him
and salary increase related to that particular rating.
If it is found that he has potential to further groom, direct the appraiser/department manager
to restructure the KRAs so that he will get a challenging target and also get a good
increase next time.
Thanks
R K Nair