Fair discrimination is when someone judges you in a negative way on how well you do things and how much you understand a subject you've never studied. Fair discrimination isn't generally being racist but it's still rude.
Discrimination based on the inherent requirement of a particular job. Compulsory discrimination by law; and. Discrimination based on productivity.
OR
The discrimination which is based on affirmative action, inherent requirement of a particular job, productivity and compulsory discrimination by law are termed as fair discrimination with regard to employment or job