Opinion on relationship, when relevant

Opinion on relationship, when relevant.--When the Court has to form an opinion as to the relationship of one person to another, the opinion, expressed by conduct, as to the existence of such relationship, of any person who, as a member of the family or otherwise, has special means of knowledge on the subject is a relevant fact : Provided that such opinion shall not be sufficient to prove a marriage in prosecutions under sections 494, 495, 497 or 498 of the Ranbir Penal Code.