Guardian's letter for my Absence from School

To
The Headmaster,
xyz high school
Ajipur,Darupa?
Pin- 7123345

Sub:  Absence from School  

Respected Sir,
With due respect I beg to state that my son, Sumon Roy of Class- X of your institution , could not attend school from 11th to 16 th instant owing to a sudden attack of fever .
I, therefore, request you to kindly grant him leave of absence for those days only.

Your faithfully, 

Sumon Roy