The cage scene has some significance for sure, but what I cant say for sure at the moment.
The thing is how much they deviate from the original....that is the big question.
But.......a few things are definitely for sure:
1) Pallavi will never willingly agree; she has made it very clear already
2) As @libran90 says Raghav has all the qualities of a sanki, possesive lover in the making, especially when he falls head over heels in love with her, so taking "no" for an answer is not in his dictionary for sure. And once Raghav starts seeing Pallavi for who she really is, it wont take long before he will go after her anytime, any place. I think he has a pretty good idea already, If his friend has already noticed tht she is different, Raghav must have too.
Something will happen to pitch them against each other, but frankly I am against anything forced........be it engagement, marriage, whatever.....or blackmail
I wont mind seeing Raghav getting impatient, but still trying to win her over somehow, but NOT forced.
"Force" is the real deal of ITV nowadays, I don't know why. But going by Sandip Sickand, he does drama but haven't seen forced marriage. At least in my experience. Even if he uses the trope then it will be in a different way - like obsessive marriage way. Kyunki RaghVi can not have a normal marriage. The first episode itself showed that Pallavi ke life me rang ke saath keechad bhi aayega. To tum samajh lo. Jitna bhi soch lo, Raghav loving Pallavi won't make it easy for Pallavi. Raghav's style of love will just create more problems for Pallavi than solving it.
Raghav is domineering, impulsive, passionate, and predatorial. Woh 'puppy love" dene waalo me se nahi hai, "pagalon wala love" dene walo me se hai. Bade bade dialogues he can make in love when he is talking from a neutral perspective. But falling in love plus his own personality involved will color a different picture of love. He can die for love and his love is strong, but he is no saint, bro. His love will cage her in his world, willingly or unwillingly. Raghav Rao will not let Pallavi go. period.