I realize why she was turned negative before killed.
Main reason is to bring out Vithruv's relationship in the public eyes. In a very bad challenging way for everyone in the family expecially Vividha, Athruv, Ravish and Suman.
I am 100 % sure Vividha will be the prime suspense of Guddi's death.
Since no one knows about the pictures, the police will do their investigations, and the Pictures found in the video projector in the scene of death will be the number one evidence.
The media will make a fest of this detail (Solder's wife in love with her psychotic step brother-in-law)
The whole family will be shocked, and they will believe that Vividha killed Guddi to hide the truth.
Suman will also believe this because she remember talking to Vividha, who wants Guddi gone in the morning. Suman will also face a replay of her life ...even worst, it will be in the public eyes. The truth about her marriage will also come in to play. (Poor Suman)
Athruv knows Vividha didn't kill and maybe knows who did it, but no one will listen to him. Infact, he may be suspect number two.
One thing for sure, I want to truth out even before Athruv come back to normal.
I want to see how this young girl will fight to world and keep her love without any help from a man.
I want to see Vividha choosing to stay with sick Athruv even when she has everything to lose.
I want Kailash to see that instead having the pride of having a poor good and peaceful laws, Now he has to face a shame to having a divorced, murderer (accused) daughter who chooses her sick lover.
Vividha just want to marry the love of her life, but Kailash has brought a lot of drama to everyone. He should face the shame as least until Vividha regains everything she has lost.
This will teach all parents a lesson. Lesson for them to think hard before forcing their kids into things ther don't want.