Bharatiya Jyotihshastra (History of Indian Astronomy), translated by R. V. Vaidya v2.c14.20

v2.c14.20

The author came across instances in which Patvardhan correctly casts the horoscope of the son by observing the features of his father. He cites one such case. He cast within 15 to 20 minutes the horoscope, along with the positions of almost all the planets of Ganesh, the son of R.B. Narayanbhai Dandekar, after observing the latter's face. This feat has not been mentioned in any book. Patvardhan has himself hit upon the method by intuition. Anyway, it cannot be foreseen to-day what miracles would be possible through astrology. This science must be developed after testing cases by experience and then astrology like several other modern sciences would, it is believed, prove to be an excellent empirical science.