It is an official document issued by the employer to the employee when he or she leaves the company. This document includes good wishes to the employee for a better career life. An employee initially serves a notice period to the company. After serving a required notice period and completing the bounded responsibilities assigned till the time of employment, the employer sends a relieving letter to the employee. The relieving letter also showcases that the employee has served the previous company without any over-dues. This letter is an important document when an individual switches companies as it is an essential document that must be submitted while joining.