Surya Siddhanta
क्रमाद् एकद्वित्रिभज्यास् तच्चापानि पृथक् पृथक् । स्वाधो +अधः परिशोध्याथ मेषाल् लङ्कोदयासवः॥
The number of minutes contained in the first right ascension, (above found), is the number of Práṇas which Aries takes in its rising at Lanká (or the equator); then take the first right ascension from the second and the second from the third; the remainders in minutes will denote the numbers of Práṇas in which Taurus and Gemini rise at the equator. (The numbers of the Práṇas, thus found, contained in the rising periods of Aries, Taurus and Gemini at the equator are) 1670, 1795 and 1935 (respectively). (In order to find the rising periods of the first three signs of the ecliptic at a given place of N. L., find at first the ascensional differences of the ends of the said signs at that place and subtract the first ascensional difference from the second and the second from the third. The first ascensional difference and these remainders are severally called the Charakhanḍas of the said signs for the given place). Subtract the Charakhanḍas (of the first three signs) for the given place from their rising periods at the equator: the remainders will be the rising periods in Práṇas of the said signs at the given place.
english translation
kramAd ekadvitribhajyAs taccApAni pRthak pRthak । svAdho +adhaH parizodhyAtha meSAl laGkodayAsavaH॥
hk transliteration by Sanscript