This is entirely based on watching only the RELEVANT PARTS of today's episode online-
Based on watching just some main parts online-
I don't think it is OVI who is kidnapped 'as some of you have already stated it was Purvi (and the confusion surmounts), it is presumably PURVI. I have changed my stance post watching the bits online...
There is significance to the fact that ARJUN is shown in the background, Arjun who was just a few moments ago with the love of his life, Ms. Purvi. The hand grasping for help and Arjun shown in the background, is of some significance. Come to think of it (as i was driving thoughts galore...) as also the importance of the question that Purvi asks Arjun- to the effect- "agar tumhari aankhon ke samne se mujhe koi le jaaye to?" (and thus the importance of Arjun shown in the background while the kidnapping takes place)...
This explains the wrong girl utha kar le aaye'So not OVI but by mistake they take PURVI!!!
Further evidence- as I paused and rewatched some of the scenes-
I think Huma was right about the hand- it is Purvi's hand- for sure- also I rewound and watched- it was not OVi's hand which at the pani poori stand ' shows her with PINK LONGER PAINTED NAILS, and in this- kidnap scene, the nails are natural color shade and not long- they are definitely PURVI's. Purvi has changed (here meaning saree, to go to the Krishna Mandir and attend Aarti there) and if you also notice the saree- pallu- was more golden, whereas for OVI it was more the purple/mauve for a little bit below where it was pinned- in the back and then golden'so if you observe carefully, it is not OVI's pallu from the back nor Ovi's hand.
Therefore the conclusion based on 1. ARJUN in the background =significant= PURVI kidnapped. 2. PALLU from the back= Not Ovi's. 3. NAILS- not pink 4. Also i have not focused on the gajra or the hair decorations of the bun- but OVI's seems to be many more stars or whatever the decoration was- this point i have yet to go back and watch...post rewatching- the decorations on the bun of Ovi and Purvi are very different, small point i know but last one i promise and then i rest my case 😆- Ovi's has the same decorations in her bun throughout- and Purvi's has the one big shiny circle in the middle- which you can see after she kids with Arjun and lightly touches his cheek and runs out- and Ovi's in the close up when she is talking to Tej, thats when you can see from behind...