Marriage is defined in Astrology as union of body, mind and soul and every time such an act takes place, it is a marriage of two people. There is nothing like 2nd marriage, 3rd marriage and the like. A normal human being gets married thousands of time in their life. Read my blog navagrahastro.blogspot.in the article “Definitions in astrology” in particular.
As per KP astrology your 7th (house of marriage) cusp sublord Jupiter is indicating another marriage. The marriage is fixed in SEp 2017 and marriage will be performed subsequently in this year or in the first half of 2018.
Dear kvsRao, Your KP Astrology it looks like something which has come out of the blue. Your predictions that a second marriage for Navin is just bluffing and has no connection with astrological axioms whether it is KP or Your own. Marriage is the union of body, mind and soul and this happens with many people many times in life. Other marriage related functions are rituals which has no significance in astrology.