Gratuity act

Friends, I have an query regarding Gratuity Act. In this act it is mentioned that if employee becomes disabled due to any accident, decease or died than he/she is liable for gratuity even 5 years not completed (some rules), but my query here is that if employer died than would the legal heirs of employer have to pay amount of gratuity to employee. If it is so than would employee gets gratuity even 5 years not completed and due to the death of employer work terminates because there is no fault from employee.