Application : To the Headmaster for leave on account of sister marriage

To the Headmaster of your school for leave on account of your elder sister’s marriage

The Headmaster,
National High School,
Karachi.
April 10, 2014

Sir,

I most respectfully beg to say that my elder sister’s marriage comes off on 20th instant. I have to help my father in making the necessary arrangements. I, therefore, request the favor of your kindly granting me leave of absence from school for one week with effect from tomorrow.

I shall be much obliged to you for this favour.

Your most obedient pupil,
XYZ