To,
The Headmaster,
[Your School’s Name],
[Your School’s Address]
Date: [Insert Date]
Subject: Request to grant leave for my brother’s marriage ceremony
Respected Sir/Madam,
I hope this letter finds you well. I am writing to kindly request leave for [number of days] consecutive days, from [start date] to [end date], as I need to attend my brother’s marriage. This is a significant occasion for my family, and my presence is essential to assist in the preparations and participate in the ceremonies.

I assure you that I will make every effort to catch up on the lessons and assignments I may miss during this period. I kindly request your approval for this leave.
Thank you for your understanding and support.
Yours sincerely,
[Your Full Name]
[Your Class/Grade and Section]
[Roll Number, if applicable]