I don't know i am right or not? but i think that the major twist in Saat-Phere would be to bring back NEEL in the show and he would be Piya's rapist...as he was not able to marry Saloni so he would take revenge...
Well, post ur opinion....as it seems neither Abhi nor Shridhar is rapist so and if he's not Ranjeet then NEEL will be culprit..