Bigamy under Hindu Law is committed by a person who marries during the lifetime of his or her spouse…

Bigamy is committed only where the earlier marriage is subsisting, that is, a valid marriage or a voidable one not yet annulled by a decree, and a marriage void ab initio does not attract it, so the answer is "The first marriage is valid AND The first marriage is voidable and no court's decree annulling first marriage has been obtained".