As the appointment letter is an agreement/employment contract between employer and employee, no subsequent change can be effected by a single party without the acceptance of the other. A unilateral decision by an employer is not binding on the employee.
Any change in the service condition taken unilaterally by the employer will be termed as ex parte and cannot withstand legal scrutiny.
Also, as per the Industrial Dispute Act 1947, the management cannot alter the existing service conditions without giving 21 days' notice of such change.
According to me, a 90-day notice period is unfair, and this cause should not be supported; neither is this step going to solve any problem. Even the Hon. Supreme Court and a few High Courts have termed a 90-day notice period as an unfair labor practice. I doubt such employment conditions are possible to implement.
Dear Archna,
Just preparing a standard operating procedure (SOP) and taking a signature of employees is not enough from a legal point of view. Issuing a circular/notice and taking the signature of employees means you are just intimating them about the change in service conditions. It does not mean acceptance of the same.
To avoid future trouble, there should be a clearly worded acceptance clause like:
I, [Name], have read, understood, and accept the change in the service conditions...
Regards,