Dear Sir/Madam,
I am writing to request early departure from school on [Date] due to an urgent family matter that requires my presence at home.
I understand that leaving early disrupts my academic schedule, but the situation requires my immediate attention. I assure you that I will make up for any missed classes or assignments.
I have informed my teachers and made arrangements to collect any necessary materials and notes beforehand. I will also complete any pending assignments and submit them as soon as possible.
I hope you can understand the urgency of the situation and grant me permission to leave early. I promise to make up for any missed work and return to school as soon as possible.
Thank you for your understanding and cooperation.
Sincerely,
[Your Name]
[Your Class and Roll No.]