Is your sister’s marriage date fixed? Wishing her the best. As a responsible brother/sister you have to participate and make little arrangements from your side for your sister’s wedding function. For that you have to get leave approval from your school.
Not only to make preparations, you have to enjoy the time during your sister’s wedding function. Keeping in view of that, here I crafted some of the best leave letter formats that you can submit to your school for your sister’s marriage.

Urgent Leave Application for Sister Marriage for School
To
The Principal,
Lorem Open Minds School,
Bangalore 560016.
Sub: Leave application for sister marriage
Respected Sir/Madam,
I want to inform you that my sister's wedding is next week, which is on [date] at [location], and my family need to travel to make arrangements.
I will be unable to attend the school for 5 days from 21 May 2025 to 25 May 2025 because of my travel.
Therefore please grant me the leave.
Thanking you.
Yours sincerely,
Sai Tej
Class 6th B
Roll No: 15
Leave Application for Sister Marriage for School

To
The Principal,
School Name,
City - Pin Code.
Sub: Leave application for sister wedding.
Respected Sir/Madam,
This is to inform you that my elder sister's wedding has been fixed for next week in my village.
For this reason, I need a 7 day leave from 01 June 2025 to 07 June 2025 from the classes to make the necessary arrangements and attend the wedding function.
I shall be thankful if you granted me leave.
Thanking you.
Yours sincerely,
Your name
Class and section
Roll number
Sister Wedding Leave application for School
To
The Principal,
School Name,
City - Pin Code.
Sub: 3 Days leave application for sister wedding function.
Respected Sir/Madam,
I respectfully inform you that my sister's wedding will be happening on 17th June 2025. I have to attend this wedding function and I have many responsibilities.
I cannot attend the school from 16th June 2025 to 18th June 2025.
So kindly grant me leave for 3 days, I shall be obliged to you.
Yours faithfully,
Your name
Class & Section
Roll number
Leave Application for Sister Marriage to Principal

To
The Principal,
School Name,
City - Pin Code.
Sub: Application for 5 days of leave for sister’s wedding function.
Respected Sir/Madam,
With great respect, I would like to inform you that I am a student in 9th B class at your school. I have to attend my elder sister's wedding function next week.
So I am unable to attend the school for the 5 days from 11 June 2025 to 15 June 2025
I would be extremely grateful if you could grant me leave.
Yours faithfully,
Your name
Class & Section
Roll number
Sister Wedding Leave Application to Class Teacher
To
The Class Teacher.
Class 9th A,
Lorem Public School,
Delhi 11052.
Sub: Leave application for my sister’s marriage function.
Respected Sir/Madam,
I am writing to inform you that I need to attend my sister’s wedding ceremony, which will be held on 25th June 2025.
I am requesting a 5 day leave from 22 June 2025 to 26 June 2026 to participate in the wedding ceremony and assist my family with preparations.
I assure you that I will catch up on all the missed classes.
I will be obliged if you will consider my leave application.
Yours sincerely,
Your name
Class & Section
Roll No
Sister Marriage Leave Application for Class 6,7,8
To
The Class Teacher.
Class 6th/7th/8th & Section,
School Name,
City - Pin Code.
Sub: 3 Days of leave application for my sister’s marriage.
Respected Sir/Madam,
Most respectfully, I want to inform you that my sister's wedding will be held on [date]. I will not be able to attend school for 3 days from [start date] to [last date].
My family needs my help as there are many mandatory tasks that I have to assist with during the function.
I would be very grateful if you could grant me a leave.
Yours sincerely,
Your name
Class & Section
Roll number
Sister Marriage Leave Application for Class 9,10
To
The Class Teacher,
Class 9th/10th & Section,
School Name,
City - Pin Code.
Sub: Leave request for sister marriage.
Respected Sir/Madam,
I respectfully inform you that my elder sister's wedding ceremony will be held on 27th June 2025.
So I am unable to attend school for five days as I want to attend the wedding ceremony and assist in the preparations.
Therefore, I request that you kindly grant me leave for five days from 24 June 2025 to 29 June 2025.
Yours sincerely,
Your name
Class & Section
Roll number
Sister Wedding Leave Application to School from Parents
To
The Principal,
School Name,
City - Pin Code.
Sub: Leave application for my son Rahul - Class 6B.
Respected Sir/Madam,
I am the father of Sai Tej, who is studying in class 6th B at your school. I kindly request you to grant him leave for 7 days, from 10th June 2025 to 16th June 2025 as we have the marriage of his elder sister during this time.
We will be travelling to our native place to attend the functions.
I hope you will consider this request and grant him leave.
Thanking you.
Yours sincerely,
Rajesh Kumar,
(Father of Sai Tej - Class 6B)
Roll no. 21
Mobile: 9425XXXX25
Application for Sister Marriage for College
To
The Principal,
College Name,
City - Pin Code.
Sub: Leave application for sister marriage.
Respected Sir/Madam,
I am Srikanth N, a student of B.Com 2nd year in your college.
I kindly request you to grant me leave for 5 days, from 10th June 2025 to 14th June 2025, as I have to attend my elder sister’s marriage at my native place.
I will be thankful if you consider my leave application.
Thank you.
Yours sincerely,
Your name,
B.Com 2nd year,
Roll no 21
The above are the best leave application formats that you can use in your school for your sister’s wedding. If you need any specific leave application format to use in school, please let me know in the below comments section.
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