We still don't know the whole story because we don't know the following:
1. Why Dheer was burning Chandani's photos?
2. The phone call to Dheer's mobile received by Eeshan when we learnt that Dheer has some friends in Bharatpur.
3. If you remember that Nahar went into Purani Dodhi but reached his bedroom before Saloni. How did this happen?
4. The woman Saloni was talking to in her bedroom. They showed her back but her voice was not like Tara. Who was she?
And so on.