Sometimes the marriage of a person is unduly delayed without any obvious reasons. However Vedic Astrology can give a very accurate reason for this if the Natives horoscope is analyzed by a competent person. Seventh House of the Horoscope is related to Marriage. For Marriage prospects of a person we have to check the Zodiac Sign present in the 7th house of Horoscope, Lord of the 7th House and Planet Jupiter which is a Natural Benefactor of Marriage in Female Horoscope as well as planet Venus which is a permanent KARAK planet of the 7th House . If any of these planets are Malefic, means if they are Retrograde, Combust, Debilitated, placed in a Enemy sign or in bad houses like 6th, 8th or 12th house , then the Marriage Prospects of a person are weakened. Presence of other bad yogas like Kaal Sarp Dosha, Grahan Yoga, Pitra Dosha etc.in the horoscope can further aggrevate the situation. Presence of Malefic planets like Saturn, Sun , Mars , Rahu and Ketu in the 7th house may also be responsible for a delay in marriage. Even the aspect of Saturn on the 7th house can cause a delay in Marriage.