I suggest issuing salary increment letters individually rather than posting them on the company's notice board. The content of the letter will vary according to the rating assigned to each employee. For example, an employee rated as "Satisfactory" will receive a different letter compared to an employee rated as "Superior," "Exceptional," or "Outstanding."
If the salary increase is based on performance appraisal with the aforementioned ratings, it is advisable to distribute the letters individually. However, if the management decides on a uniform salary increase for all staff as a gesture of appreciation, a general notice will suffice.
Thank you,
Regards,
R K Nair