Understanding Appointment Letters and Designation Changes
An appointment letter is a document that should reflect the designation of the employee at the time of their appointment. For example, if you appoint a person as an assistant, the appointment letter should inform them that they are appointed as an assistant. Thus, their designation as of the date of appointment will remain as 'Assistant' only.
Assuming that they are promoted after three years to the position of an officer, it does not alter the status of the employee with effect from the date of their appointment because on the date of appointment, they were only an Assistant. However, in all subsequent communications meant for them, they should be addressed as 'Officer'.
Regards,
B. Saikumar
Mumbai