8. If any labourer -(a) is declared by the prescribed medical authority to have been permanently disabled, physically or mentally, to discharge his duties and is, for that reason, retired, removed or discharged from service; or(b) dies during the continuance of his employment, or if he, being a retired labourer, dies within a period of five years from the date of his superannuation,the labourer or, in the event of the labourer's death, the wife or wives or the husband of the labourer, as the case may be, shall be entitled to receive the grant from the Fund according to the scale as may be prescribed.