In astrology and numerology, compatibility between partners plays a significant role in determining the success and longevity of a relationship. One of the traditional and popular methods used to assess compatibility in astrology is Gun Milan (also known as Kundali Matching), which is part of Vedic astrology. Gun Milan is a system that evaluates the compatibility between two individuals based on their birth charts. This system is mainly used in Indian astrology for matching horoscopes before marriage.