Sanskrit verses with English translation from Maharishi Parasara. Read the full classical treatise on AstroFusion Learning.
पिण्डायुरंशयुश्चैव द्विविधोऽयं बिधीयते। लग्नाद्यायुर्गुणं ज्ञात्वा आयुः सम्प्राप्याथ ध्रुवम्॥
piṇḍāyuraṃśayuścaiva dvividho'yaṃ vidhīyate | lagnādyāyurguṇaṃ jñātvā āyuḥ samprāpyate dhruvam ||
Pindayu and Amsayu constitute this two-fold method; knowing the strength derived from the lagna and other factors, the certain span of life is obtained.
ग्रहाणां वर्षपूर्णानि क्रमेणोक्तानि भास्करात। काक्ष्यांशगुणितान्येतातपिण्डायुः परिकीर्तितः॥
grahāṇāṃ varṣapūrṇāni krameṇoktāni bhāskarāt | kākṣyāṃśaguṇitānyetānpiṇḍāyuḥ parikīrtitaḥ ||
The complete years of the planets are declared in order beginning with the Sun (Bhaskara); these, multiplied by the traversed portion of their respective kakshyas (orbital segments), are proclaimed as the Pindayu.
नवमांशगतं ग्रहं तु विशेषेण विचिन्तयेत्। भोग्यांशहारगुणितं अंशायुर्लभ्यते ध्रुवम्॥
navamāṃśagataṃ grahaṃ tu viśeṣeṇa vicintayet | bhogyāṃśahāraguṇitaṃ aṃśāyurlabhyate dhruvam ||
One should examine with special care the planet's position within the navamsha; multiplying and dividing by the traversed portion of that amsha, the Amsayu is obtained with certainty.