___________ (Recipient’s details),
Date: __/__/_____ (Date)
Subject: An apology for being late
Respected sir/ madam,
My name is ________ (name) and I am writing this letter with the utmost respect to seek your kind forgiveness for me being late to the ____ (school/ college/ event/ office/other).
Through this letter, I would like to present the reason, why I got late on __/__/____. Respected, the reason behind the same is _________ (mention reason for being late). I understand that such behavior is not at all acceptable but due to unforeseen events all this happened.
I believe you would consider this letter as a genuine apology and I hope you would consider forgiving me for the same.
____________ (Your name),
____________ (Contact number)