Subject: Request for Leave for Cousin's Wedding
Dear Principal,
I am writing to request your approval for a one-week leave from school to attend my cousin's wedding next month. I believe that this family event holds great significance for me and I would like to be present to celebrate this joyous occasion with my family.

Reason for Leave:
- I have been invited to my cousin's wedding which is taking place in a different city.
- As my cousin and I share a close bond, it is important for me to be there to support and participate in the festivities.

Timing of Leave:
- The wedding is scheduled for [insert date] and I would need to leave [insert date] to travel to the venue.
- I would require a total of one week off from school, including the days of travel and the wedding ceremony.

Academic Plan:
- I have discussed my leave with my teachers and they have assured me that I will be able to catch up on any missed assignments or coursework upon my return.
- I am committed to staying on top of my studies and ensuring that my leave does not impact my academic performance.

Responsibility:
- I will make sure to inform my classmates about my absence and coordinate with them regarding any group projects or assignments.
- I will also submit a formal leave application along with any necessary documentation to the school office.
I hope you will consider my request for leave and grant me the time off to attend this important family event. I assure you that I will make up for any missed school work and remain dedicated to my studies upon my return.
Thank you for your understanding and support.
Sincerely,
[Your Name]
[Class/Section]
[Roll Number]