To request a relieving letter, you need to write a letter that contains details of your designation, employee ID and resignation dates¹. The letter should convey a sense of urgency while being respectful and professional¹. Some companies send the relieving letter themselves to an employee who has resigned, on their last day of work¹. The letter should state the cause for the employee's release, mention that all of the employee's official possessions must be returned to the office, and declare that all of the employee's debts must be paid².