Heres what I think will happen

Thakur's goon will fire a shot at Paro to kill her. Precap shows him identifying her and pulling out a gun. In that precap, paro and Rudua are wearing different clothes, so we can be sure this doesn't happen during the sangeet.

When the goon shoots, Rudra will see it and get in between. The bullet will hit him but not cause serious injury. This will prove to Paro that Rudra is right and that the Thakurs men are after her and everything he has said could be true. She will change her mind and sign the contract. This will save Rudra's BSD job which is the need of the hour...

Not sure how the wedding track will go from there. But now that everything is in the open, Paro will need even more protection and so Rudra wont let her go as she is now even more important to the case...

what do you think?