Dear Amit Paul,
before sending a notice to the ex-employee, the members of this forum need to know whether the employee had submitted a proper letter of resignation and in response to this resignation letter, whether the HR department had sent him a letter outlining the procedure for the discharge which includes serving the notice period as per the terms of his/her appointment letter. One more thing that merits mention is what would be the Last Working Day (LWD) of an employee.
Secondly, did the employee take clearance from each department before stopping coming for the duties? If yes then why HR department issued the clearance form at all? What was the need to do it? The employee could have been just told to serve the notice period and on the last working day or two before, he would be issued with the clearance form.
If the employee has not submitted a letter of resignation or has not taken clearance from each department then it shows the abandonment of employment. In that case, you cannot just stop at sending a letter for the recovery of the notice period but you need to send the notice to the employee to join the duties forthwith. If the employee fails to join then you need to order the domestic enquiry. If the employee fails to depose before the enquiry then your company is free to lodge a police complaint also.
Please confirm entire facts of the case. It will not be proper to send a letter with incomplete knowledge.
Thanks,
Dinesh Divekar