I think he will ask her to act as if they are engaged, so that his ex reacts. But m wondering if she wont even pick up his phone in 7 yrs, why will she give a damn abt his engagement.
Maybe Sumit will spread some nonsense abt Ronakshi which will make Sona agree for this charade as well.
I just hope Rohit doesnt say something like, 'I will pay you for this' Nd I for sure hope he doesnt say this to her mom. Her mom might even sell her off if shez offered a few crores.