Nice story

First Dev was serious and Kaj was teaching him how to 😊... now Kaajjal is serious and Dev will teach her how to 😊. I think this show is pretty realistic so having a twin or look alike look would be very unlikely! He will not reveal his identity until he unveils the going ons in his house.

Another possibility is that it is a look alike and Dev is somewhere saved by someone. When he comes home after regaining his memory then he finds Kaajjal in love with Raju, since she thinks he is Dev! That will be a hard choice to make for Kaj at that time!

I think the show has picked up steam! Romance with comedy rocks!

Smiles

Dev alive and somewhere else and Kaju falling for Raju, and then Kaju having to choose............ No sounds very complicating and difficult for me to digest.

But maybe I agree with your first possibility. 👍🏼

Your first possibilty is good.
Second one...hmmm Actually dev already has a past ...And kaajjal will never comes to terms with the Fact that dev is dead!! Neither will I guess!!