Answer:
This is a sample (draft) leave application for your reference.
(Date)
To,
The Class Teacher
(School name and address)
Subject: Application for leave of absence.
Sir/ma'am,
I am (your name), student of class (Your class and division). With due respect, I would like to inform you that I will not be able to attend school from xx-xx-xxxx to xx-xx-xxxx (mention the period you will be absent) as I am going to my hometown with my family. It's been a while since I visited my hometown and my grandparents do expect me with my family.
Therefore, I request you to kindly grant me a leave of absence for those days.
Thanking you.
Yours obediently
(Your name)
Class - (class and section)
Roll No: (your roll no.)
I hope this answer is helpful to you.