I am not 100% sure if it is ovi the first time, but Purvi will be the second kidnappe. Think about it for a second, if it was purvi the first time, how is it possible? When did she have time to change and why would she? She was already running late foe the aarti, right? And by the precap, the girl escaped. If it was purvi who escaped, what is the story in that? How does arjun get a chance to play the hero? :):)
I think vishnu is going to come back to the event and kidnap purvi from the temple, maybe, just as arjun is watching like she said, right before his eyes..wouldnt that be more fun ?? :) this way can see our hero in works...let us imagine the best scenario that works for us :)