The Officer In-charge,
_________ (Company Name),
_________ (Company Address)
Date: __/__/____ (date)
Subject: Request for cancellation of duty
Respected Sir/ Madam,
My name is _________ (mention name) and My ID number is _________ (mention your ID number). I would like to inform you that I have been assigned with the ________ (mention duty name – exam checking/ invigilation/ any other) for which I am supposed to be present at the _________ (mention location) but for the reason __________ (mention reason for requesting duty cancellation) I will not be able to come for assigned duty.
I apologize for the inconvenience caused. It is to request you kindly cancel my duty. I shall be highly obliged for your kind reference. For any queries, you may contact me at __________ (mention contact details).
________ (Contact details)