The Aiauca is said to be for ten days in the case of Nirguna (devoid of qualities) and Atinirgum (extremly devoid of qualities). One who is endowed with one, two or three gunas becomes pure in four, two or one days respectively. to perform religious acts, to prosecute Vedic study and to participate freely in social functions like dinners etc. There is a distinction about the periods of Asauca and the persons affected by them. Asauca on death has many distinctions e.g. after abortion before the 4th month and after that, death of a child before and after cutting the teeth, before or after performance of Upanayana or marriage. The dura¬ tion of diauca depended upon the nearness of blood relation, place of death and the time-limit of being informed about it. KP deals with these topics in a loose Puranic way.