If any of the 3 leads have motive to be negative, I place my bets on Ravish :)
1. He's beaten and chained up Atharv on a few occassions without proper proof, maybe that was the true hatred coming out!!
2. His mother's lived a loveless marriage cos of Sujata apparently, that goes down for another reason why he could be seeking revenge against Atharv and Sujata!
3. He could have also killed Guddi 😲 cos she was trying to reveal ViTharv truth and he obv didn't want that and he was the one to take the pendrive as well!
4. The most obvious reason is that he's heartbroken he loves Vividha, but Vivz made it pretty clear that she doesn't wanna be with him and she loves Atharv, so y'know maybe he's jealous and wants to get rid of Atharv!!
PS. I actually don't think he will turn negative, BUT JUST IF IF IF any of the leads were to turn negative i'd say it was Ravish and these are just MY theories and predictions and the way I am seeing things 😳 no offence to anyone! Peace 😃