Read a news link which says Dev will soon be exposing Ritwik.
Ritwik apparently turns out to be a bad guy according to this article :
http://tellyupdateus.blogspot.com/2016/08/krpkab-ritvik-turn-out-bad-boy-dev-on.html
My guess is Ritwik might be marrying Sona since he has no job. He is currently not working anywhere as shown in last episode. May be he might be having some issues like his license cancelled or something like that and he might be marrying Sona only because she is a doctor.
And then the angry Mr. Dev might try to find out how Sona got the proposal of Ritwik .. through which marriage agency .. etc .. And that's when he might find out that it was actually his own mother Ishwari who sent this alliance to Sona ...
What do you guys think .. What might be wrong with Ritwik ???