It is said that a man shall marry a maiden which is much younger than him.
See about that in the Vishnu Purana: Book III: Chapter X:
http://www.sacred-texts.com/hin/vp/vp084.htm

"If he marry, he must select a maiden who is of a third of his age"

It is said that a man shall marry a maiden who is much younger than him.
See about that in the Vishnu Purana: Book III: Chapter X:
http://www.sacred-texts.com/hin/vp/vp084.htm

"If he marry, he must select a maiden who is of a third of his age"