This study of the birth horoscopes for the marriage partners gives sufficient basic clues for a happy partnership or otherwise. A Scientific methodology based on compatibility on Moon and other aspects is evolved for matching the horoscopes for marriage partners. The magnetic control, amenability, psychological dispositions, mental qualities, bodily/physical contacts, affection, harmony, progeny, temperament, character, pulse or nervous energy indicating physiological and to certain amount hereditary factors, duration of married life, widowhood etc. are considered for matching horoscopes. Tables for compatibility points are given. Accordingly, a criteria is evolved for matching of the two horoscopes as poor, fair, good, very good, excellent. The complete scheme can be computerized. Model horoscopes of couples with successful marriage and prosperity are also given for ready interpretation of this methodology. This book will make a useful addition to present literature on matching horoscopes for marriage. It will be received with interest and approbation by the students as well as scholars in the subject particularly the scientific astrologers.