Analyzing all that happened so far, it is obvious that Kanha and Dev want to give Radhika the status and prestige as a wife and not the other women. So, the possibe scenario would be:
At this puja that is scheduled, the scene that happened at marriage repeats itself, that is, vishaka is dressed up and is waiting. Radhika is also with her. Remember she left a message for Purab to come? Now he also comes. Vishaka switches radhika again and sneaks out. Radhika sits in her place with dev and is performing the puja. Mrinali notices that again 2 people are sneaking out, follows them and sees that it is vishaka. by this time the entire puja is complete and radhika lights the lamp that has to be lit. mrinali makes a big fuss and forces to see who is under the ghunghat. now the world sees radhika. mrinalini blurts out that even the marrige was not vishaka's but radhika's and the world come to know the truth. then the suhag raat etc.
do u guys think that this may happen?