Hayanaratna · by Balabhadra
Chapter 7 · Finding the Dashas
दशानयनाधिकाराध्यायः
अत्रांतर्दशाः सुगमोपायेनसामुद्रिकग्रन्थे उक्ताः ॥वेदा ४ नागाः ८ शराः ५ सप्त ७ दिग्र१०सां ६ कृ९शराः५रसाः ६ सूर्यादीनाञ्च गुणकास्तैर्निघ्ना स्वदशामिति ॥ १ ॥
Here the antardasha (sub-period) lengths are told by an easy way, in the Samudrika book. The multipliers for the Sun and the others are 4, 8, 5, 7, 10, 6, 9, 5 and 6. Multiply the planet's own dasha (planet period) by them.
Simple meaning: Mudda sub-periods: each planet has a multiplier, 4, 8, 5, 7, 10, 6, 9, 5, 6, from the Sun on; multiply the period by it.
षष्ट्याप्तान्तर्दशा तस्य जायतेतिपरिस्फुटा ॥
Mudda sub-periods: divide by 60; the year's own planet takes the first sub-period.
अन्यास्तदग्रिमस्थानादेवमन्तर्दशा अपि ॥
Mudda sub-periods: the rest follow in order; a bad planet's year brings sorrow, a good one's brings happiness.
अथ सूर्यादीनांदशान्तर्दशाफलं ॥ तत्रैव ॥
Sun inside the Sun's mudda period: fear from the king, bile trouble, trouble for kin, spending.