This killer falling for Pragya wouldn't be a serious track.
I think it is just for the sake of drama in RamLeena function. It will be solved right away!
It could be to spin off of Ramayan-Ravan (killer) kidnapping Sita (Pragya) and Ram (Abhi) looking for her desperately and bringing her back from hostage with the help of Vanar sena (Ronnie et al).