But the Lagna gives its Ayurdaya corresponding to the character of its rising Navamsa, i.e., as many years, months, etc., as the number of the Rasi owning the rising Navamsa indicates. If the Lagna be strong, it gives in addition as many years as there are Rasis in the figure denoting the Lagna. In this Satyayurdaya the reduction due to the presence of a malefic planet in the Lagna does not find place. The years assigned to the planets in the previous Ayurdayas are not to be used for calculation.