The HR Manager,
____________ (Name of the company),
____________ (Address of the Company)
Date: __/__/____ (date)
Subject: Apology for not meeting the deadline
My name is ____________ (name) and I am working as _____________ (position) in ____________ (department) of your esteemed organization. My employee ID is ____________ (mention employee ID).
This letter is in reference to the project report analysis on ____________ (project details) which was due to be submitted on __/__/______ (date). I deeply apologize for not meeting the deadline as I was ________________ (mention reason for not meeting the deadline). I am sorry for this unprofessional behavior and I do accept my mistake for not meeting your expectations.
Therefore, I seek your forgiveness regarding the same and please bear with me. I am sorry for the inconvenience caused to the __________ department. I assure you that I will submit my project reports before __/__/_____ (date) to avoid any further inconvenience.
Thank you for your support and patience. If you wish to discuss further regarding the same, you can contact me at _________ (contact details).