JYOTIS SASTRA consists of three branches : SAMHITA (Natural Astrology), Tantra (Astronomy), and Hora (Horoscopy).Prasna (Horary Astrology) is a branch of Horoscopy. various works exist on prasna. JINENDRAMALA and GNANAPRADIPIKA are two of the works extant that treat of the subject fully. The two works are, each so exactly like the other that the one may be said to be a version of the other. The present work differs from Shatpanchasika similar works on the subject in this important point.