In Kyuki Saas bhi kabh bahu thi:
1. Mihir died once, they even conducted his funeral showing the face of the character, but later he came back hail n hearty.
2. Later when the actor refused to age on-screen. They conveniently got another actor refering him as mihir.
3. Same thing happened with Tulsi, she died, the face of her dead body was shown, but later she showed her living in benaras.
In Kahin toh hoga :
same thing, they changed the actor and a new actor was replaced overnight.
So many times, the character just attaches a moustache and passes off as another guy.
So this is nothing actually.