Yes Rudra definitely thinks that Varun was paro's name sake husband since he knows that the whole wedding was fake the wows were fake and was only for exchange of weapons. He wants paro to believe in him and about the girls wedded and sent on the other side of the border, but finds himself helpless.
Unfortunately he thinks paro to be a part of the whole wedding. Why does not he starts his own investigation. He is at a higher position. Though BSD has said that they will not help him but he can still investigate the case from his side.
second thing if he hides paro Tejavat will never reach for her but if he brings her in light he will try to do some thing and do mistakes since Rudra is much more ahead then Tejavat he can protect Paro and catch tejavat red handed. Story of tejavat is at stand still.
No doubt we are enjoying rudra personal life but it is moving no where. And moreover if he marries paro now BSD and Tejavat will get another say that he killed Barat for the Girl More and More misunderstanding for Rudra. Tejavat will not leave this opportunity to convince his villagers against BSD.