While resigning from service, one should give a notice period of one month before leaving. 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 the employee from service upon the employee's request without a one-month notice. In such a scenario, the employee will have to pay one month's salary in lieu of the notice period. In other words, the company can deduct the amount from the full and final settlement or waive it, depending on the employee's service duration.