Hayanaratna · by Balabhadra
Chapter 7 · Finding the Dashas
दशानयनाधिकाराध्यायः
अथ मासलग्ननिरीक्षकाः सुर्यभौमशुक्रचंद्रास्तेषां दृष्टिः कलादिका सू ४ मं२५शुक्र १५ चंद्र१० अत्र माससंख्या ३० अनेनैव क्रमेण स्वस्वदृष्ट्या गुणितादृष्ट्यैकोन ९० भक्ताल्लब्धा मासदशाहाः सू १३।२० मं८।२० शु५।१० चं ३।२१
Next, the planets looking at the lagna (rising sign) of the month are the Sun, Mars, Venus and the Moon. Their looks, in minutes and so on, are: Sun 4 as printed, Mars 25, Venus 15, Moon 10. Here the month count is 30. In the same order, multiply it by each look. Divide by the total of the looks, 90. The month dasha (planet period) days are: Sun 13;20, Mars 8;20, Venus 5;10, Moon 3;21. (Our text is unclear here: the Venus and Moon figures do not match the rule.)
Simple meaning: Tasira periods, month example: 30 days are shared by the looks of the Sun, Mars, Venus and the Moon.
एवं दिनप्रवेशलग्ननिरीक्षकाश्चंद्रगुरुशुक्रशनिभौमास्तेषां दृष्टिकलादिकाः चं४५ बृ ३० शु२० श१५ मं१० दिनप्रवेशयोरन्तरालघटिकाः ६०कल्पिताः स्वस्वदृष्ट्या गुणितादृष्ट्यैक्येन १२० भक्तालब्धादशाघटिकाः चं२२।३०बृ१५ शु१०श ७ मं३०
Tasira periods, day example: 60 ghatikas are shared by the looks of the Moon, Jupiter, Venus, Saturn and Mars.
अथ भावतसीरदशा तत्रैव ॥
House periods: the degrees between one house and the next give that house's days.
लग्नादीनामथैतेषां सौरसावनतोक्तवत्॥
House periods: turn their solar days into solar-civil days. This is called the house order.