Note the Ghatikas and Vighatikas that have elapsed from sunrise to the moment of birth. Multiply them by four and divide the total by nine. The remainder counted from Asvini, Magha or Mula indicates the constellation at the time of birth. Another method is given. Convert the Ghatikas and Vighatikas at the time of birth into Vighatikas. Divide this by 225. Take the remainder. We get parts - 1 to 15, 16 to 45, 16 to 90, 19 to 150 and 151 to 225. Note in which part the remainder falls. The above five groups indicate respectively male, female, male, female, and male births. Moreover, determine the portion of Mandi in Rasi and Navamsa, and also of the Moon. The lagna at birth is the sign occupied by the Moon or Mandi. Or it can be the seventh, first, fifth, or ninth from either of the two signs mentioned above. Of the navamsa signs occupied by the Moon and Mandi find out which has greater strength than the Rasis occupied by them in the main chart. The lagna will be one of the houses counted from the stronger navamsa sign of the Moon or Mandi.