Dev's mystry is killing everyone he is even more unpredictable than before. He even knew abt heeron ka haar of mami, why he wudnt have stalked his love. Nd the dialogue was very mysterious.
The things that shows that he may be knowing abt sona
1. Saurav's business idea had potential nd he knew everything abt it.
2. He is taking random decisions that gives loss to company. So where is money going.
3. Dev was not the one who will throw a family on roads in night remner ishu's dailogues. He even can't disobey his maa.
4. After that much he still cares for every body's future so why not sona's.
5. May be asha or saurav secretly involved with him or with the help of Elena he can help them with her sona's maashi's help or something.
6. Suddenly what happened in Delhi so sona have to go there.
One thing still contradictory
If he have stalked them so why he wud be unaware of soha. As far as we know him he cudnt resist himself from his daughter.
So how its gonna unfold is the glich