While Resigning from service, one should give notice period of one month before leaving from service. This notice period will help the organization to recruit another person without any work suffering.
Hence, the notice period is required to be given. In case, there is no work suffering, the management may relieve him from service on request of the employee without notice of one month. In such case, the employee will have to pay one month salary in lieu of notice period. In other words, the company can deduct the same from the full and final settlement amount or they can waive the same depending the service of the employee.