It is true that there is no need to record ones’ CLs in the Service Book. But it is also true that one cannot enjoy CL without written application, before or after enjoying the CL/s. So an HM can demand applications for CLs, but only for the current academic sessions. As far as previous sessions are concerned, you are granted CLs that means you are granted on your written applications and the MLs for those academic sessions have already been granted by the MC (All leaves except CL are to be passed by the MC). So the HM cannot convert those previous CLs into ML or EOL or any other kind of leave citing that no applications were submitted. I would, therefore, suggest you to submit applications for CLs enjoyed in the current session.
