Since the employee has not tendered his resignation, he is still employed until his service is terminated. His service can be terminated due to habitual absenteeism, but this must follow a legal procedure.
Steps to Terminate Employment Due to Absenteeism
First, the employer needs to ask the employee to return to work (a few times). If the employee does not respond, then issue a charge sheet, initiate a domestic inquiry, and then proceed with termination. From the situation, it seems that the employee is still in service (though absent) as he has not yet tendered his resignation.
Check my blog
www.labourlawhub.com for more information on labor law-related issues.