Anu, this is what happens.....as you already watched the scene, so here are the dialogues
Mayank proceeding towards Nupur.....
Mayank:Kya tumhara dil meri awaaz sunne ko nahin tarasta?
Nupur is now standing against the wall, Mayank brings his hand upto her cheek.
Mayank: Jawab Do....
A dry mouthed, nervous (I guess) Nupur twists her lips
Mayank: Kya tum bhi mujhse utna hi pyaar karti ho, jitna main tumse? (a short pause) Haan ya Na?
And the camera focuses on Nupur's face, and Mayank's both hands are on her either cheeks now, and again that guy repeats "haan ya na".....
the humiliating part is that Nupur is being all.......breatheless, asli mein, infront of these people. Moreover, she will say 'yes'. And being a fan of theirs, the displaying of a rehearsal confession is pretty cheesy, and Nupur's haan only shows that how shallow MN are. They have no bonding, no nothing, no emotional attachment. Mayank is playing a game where he wants to make Nupur realise her love, while what Nupur is feeling is simply being forced down by Mayank. Its not even her actual feeling, it seems like she wants to believe she is in love coz Mayank is being all filmy.