According to Hindu custom, a couple should only get married after having their horoscopes matched, since this will ensure their compatibility and happiness. The Vedic astrology counsel views Kundali matching as being crucial for this goal. There are eight Kootas or Koots in a kundali. For the bride and the husband, they must match 36 guns, also known as ganas. This Vedic astrology-based method of horoscope matching is also known as Ashta Koota Milan.