The interval between midday and the time of birth is called nata. The interval between the time of birth and midnight is called Unnata. The interval in ghatikas divided by thirty gives the natonnata bala of planets in the form of a Rupa. This is one of the parts of Kalabala. The instruments needed to find the time have been explained in the sixth section of Purva Kalamrita. adyya a arent Rafaren yat O T E n Perm ufeen: afea miaren mma Ragion ata: The lords of the year, month, day of birth and hora have a strength respectively of .25, .5, .75, and one Rupa. This increases Kalabala. Hora is determined thus: Multiply the birth ghatikas from sunrise by two and divide them by five. The quotient gives the number of elapsed horas. The lord of the first hora on any day is the lord of that week day. From that lord we have to calculate the horas in the sequence of Ravi, Shukra, Budha, Chandra, Shani, Guru and Kuja.