When a planet is in its depression point, the period assigned to it is reduced by half; but when it occupies an intermediate position, the reduction is to be proportionate. The number of years given by the Lagna corresponds to the number of its Navamsas that have risen above the horizon. According to some, the Lagnayus is as many years as there are Rasis reckoned from Mesha up to Lagna. [For example, if the Lagna be at the commencement of the 11th degree of Kumbha, the Lagnayus is 3 years since 3 Navamsas of Kumbha have risen. According to others, the Lagnayus is represented by 10½ years. This latter view is not however accepted by Varahamihira.] The planets except when their motion is retrograde lose a third of their Ayus when in inimical houses. When they are eclipsed their Ayurdaya is to be diminished by half. This last reduction does not apply to Venus and Saturn.

पिण्डायु पद्धति: सूर्य से आरम्भ होने वाले ग्रहों के लिए जब वे परम-उच्च में हों, उनकी अधिकतम आयु-वर्ष संख्या क्रमशः 19, 25, 15, 12, 15, 21 और 20 है। यदि ग्रह परम-उच्च और परम-नीच के बीच हो, तो आयु की गणना त्रैराशिक नियम से करें। परम-नीच में ये वर्ष आधे हो जाते हैं।