I beg to inform that my name is _________ (name) and I am studying in _________ (class) class of your reputed school. My roll number is ___________ (roll number).
I am writing this email with the utmost respect in order to request you to kindly sanction me leave from __/__/_____ (date) till __/__/_____ (date) as I have to attend marriage of my ____________ (brother/ sister/ cousin/ neighbour/ any other).
I promise that this won’t be affecting my academics and I will be completing my classwork and homework as soon as I join back.
__________ (Your name),
__________ (Roll number)