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To Date: The Head Teacher
Kandriya Vidyalaya,
Sirinagar
Through Class Teacher
Subject: Application for grant of absence
Dear Mr [Teacher's family name],
I would like to inform you that our son [name and surname] of class 1(A) will not be able to attend his class from 21/08/2008 to 24/08/2008, as we are to go to Delhi for medical treatment of my wife.
Kindly grant his leave of absence and provide necessary assignments or home work for that period.
Thank you for your consideration.
Regards,
XYZ
(Father of name and surname)
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MOD NOTE: Edited to remove personal info.