Dear Shilpi,
In every format you are focusing on employees dues,this is a very objectional practice,only these reason our Indian' HR facing critical problems.
You should take action as per law requirements ,what your standing orders says about the disciplinary actions? ....Being a HR person you should take all matters in a legal way.
I remember my past experience in Germany,i had conducted the audit of a retail firm and found one case that one employee left the organisation without notice period/or information to the organisation and even after the company transferred the whole salary to him by thinking that he may be in trouble or some urgency so could not inform us.
After six months ,the employee came to the company and return month salary to the organisation stating that i had not served notice period so i am liable to get it.
Liability and moral responsibility can change the world.
Best Regards
Sajid Ansari-Delhi