Is it possible that it is Suraj who is the cause of all the problems in Vedika's life - the mysterious helper of Antariksh? He does have a reason to be pissed at the Raizada's and i remember Vedika mentioning it to Niharika once that - how come you never supported Suraj and I when I was in love with him before I went mad?
So is it not likely that Suraj blames Niharika for losing Vedika to Dhruv? If Niharika had not caused them to elope that first time when he had that accident, he would still have been with Vedika. And all the problems came up ONLY after Vedika came back from Suraj's house with Dhruv. His 'Deeda' may also be plotting revenge...what do you say?