கிரகங்களின் தசைகள் - பிருஹத் பராசர ஹோர சாஸ்திரம்

90-91. Multiply the past Ghatikas, Palas etc. of the Pad of the Nakshatr, in which a person is born, by the existing Dasha years and divide it by 15. The result will indicate the expired period of the Dasha in years, months etc. By deducting it from the total number of years allotted, we get the balance of Dasha at birth. The Dasha should be taken, as commencing from that Rasi.

92. Multiply the past Ghatikas, Palas etc. of the present Pad of the Nakshatr by the number of years and divide the product by the fourth part of Bhabhog. The years etc. so obtained may then be deducted from the total Dasha period. The result will be the balance of Dasha at birth in years, months etc.

93. The past Kalas (minutes) of the Navans, in which Candr may be placed, should be multiplied by the years, allotted to the Dasha and the product should be divided by 200. The resulting years etc. will be the expired portion of the Dasha. By deducting them from the total number of years the balance of the Dasha at birth is obtained.