Hi Vadirajaa,
Step 1:
If an employee is taking leaves without approval, it can be imposed as LOP
Step 2:
If that employee is taking leaves without approval of the immediate supervisor/ line manager, then HR has to send a mail to his/ her personal & professional mail IDs, asking about his/ her uninformed absence and explanations on his third day of continuous absence without information, copying the mail to his/ her immediate supervisor/ line manager.
Step 3:
After sending a mail as in STEP 2, the HR has to try reaching that employee in his/ her contact number, as well as the emergency contact given by that employee.
Step 4:
If the STEP 2 mail is not responded by that employee within 24 hours and he is unable to contact, then the HR has to take the approval of his/ her immediate supervisor/ line manager to terminate the employment of that employee with the company.
Step 5:
Now, the HR has to send a warning mail to that employee copying his/ her immediate supervisor/ line manager, stating a time limit of 24 hours and mentioning that "Failure for explanation will lead to termination of employment".
Step 6:
If the mail is responded, no problem already a warning has been given as mail.
If not, then the HR can directly terminate the employment of that particular employee.
NOTE:
Excess leaves in case of emergency can take a post approval of immediate supervisor/ line manager, explaining the sensitivity of the situation to his/ her immediate supervisor/ line manager.