The gana milan is a very minor insignificant part of marriage compatibility check. Read my articles of Myths and misconceptions in Astrology at http://navagrahastro.blogspot.in/. Out of 100%, Gana compatibility gets only 1% mark.
Better have a full compatibility check of your horoscopes and then decide whether to marry or not. You can use paid services by sending email to me firstname.lastname@example.org if interested.