Prasna Marga is the most comprehensive and elaborate exposition of Horary astrology.
It is  part of Vedic astrology  predations based on as such planetary position.
Finding  root  of the issues  and suggesting solutions. More   fine turning  of life through this.
​In  Prasna Marga also uses many techniques using shells, Tamboolamm, charts etc, Now a days  it is most important  part of Vedic Astrology in  prediction  section ​

Horary astrology is an ancient branch of horoscopic astrology in which an astrologer
attempts to answer a question by constructing a horoscope for the exact time at which
the question was received and understood by the astrologer......

The answer to the horary question might be a simple yes or no, but is generally
​more complex with insights .....