In Hinduism, Astro numerology is a system of astrology in which both astrological and numerological factors are considered together. Hindu astrology has produced a unique system known as the ashtakavarga. Astro numerology is an integral part of the classic texts like Brihatparasara Horasastram and Brihajjataka. The ashtakavarga, literally meaning group of eight objects, deals with transits of the planets. In the conventional transit system (gocara) of astrology, the effects of transits of various planets are obtained by studying the placement of the transiting planet from the moon in the birth horoscope.
The ashtakavarga system, however, is more general in as much
as the position of the transiting planet is studied not only from the natal
moon, but also from the other planets (the sun, Mars, Mercury, Jupiter, Venus
and Saturn, and the ascendant (lagna) rising at the time of birth). In this
system, a planet is said to contribute a benefic point, called bindu, to
different houses. For ashtakavarga of different planets, it produces auspicious
results while transiting it. For instance, for the sun-ashtakavarga, the moon
contributes in the third, sixth, tenth, and eleventh houses with reference to
its house in the horoscope. In this manner, contributions to the various signs
made by all the planets are obtained for the sun-ashtakavarga. The transit of
the Sun through a sign, acquiring four or more points, would produce favorable
results regarding honor, profession, and father; otherwise, it proves to be
malefic. Similarly, ashtakavargas of other planets and lagna ar obtained, which
govern different aspects of human life.