Dear sir/madam,
This email is to inform you that my name is __________ (name), working as a ________ (mention designation) in the organisation from the last ____ (mention duration).
Courteously, I want to inform you that I have to attend my __________ (mention relation) wedding. In this regard, I will be not be able to come to office from __/__/____ (date) to __/__/_____(date). It would be highly appreciated if you could grant me the leaves on mentioned date, so that I can manage my pending work accordingly.
I once again request you to kindly grant the approval. Thank you for your time and kind understanding. I shall be highly obliged.
Yours sincerely,
_________ (Name),
_________ (Contact details)