Do u think Rajnath killed dev's dad?

What evidence gives sakshi control over raj nath and he married muderer widow sakshi khan?did raj murdered his elder brothet for buisness or for some scam!

Yes. Enough hints in old episodes of Rajnath having hand in Arnab's death.

Yes..but dont think Rajnath would have dont that..Looking at Sakshi's past

For sure, raj might have murderd dev's dad by influence of sakshi and sakshi might have used those evidence to blackmail raj and must have gotten married to him

I think Arnab knew something about Sakshi and Rajnath. it was not about money.

yes and sakshi knows about that and that is why she is blackmailing him