In the bright half of the lunar month, the Paksha (fortnight) bala of a planet is proportionate to the elapsed lunar days (tithis). The fortnightly strength of a malefic is proportionate to the lunar days yet to elapse. In the case of a birth in the dark fortnight this is reversed. The paksha bala of the Moon is to be doubled. When a birth is in the second portion of the day, the Sun has the strength of one Rupa. If the birth is in the last third part of the day, Saturn has one Rupa. Birth in the first one-third of the night gives the Moon one Rupa of strength. In the second part of the night Venus is strong, and in the third Mars. In the first one-third of the day Mercury is strong. Jupiter is strong always. This is Aho-ratra-bala. Multiply the nata in Ghatikas by two and divide it by sixty. This indicates the Natabala in the form of a Rupa. Subtract this from one to get the unnatabala. Moon, Mars and Saturn have nata bala, and the others unnatabala.