It could be anything.
Either she wanted to scare Raima. Or they made a combo plan to trap Dev.
Raima cannot just stand and get shot. I suspect something fishy in her not defending herself nor raising alarm.
@Leaves - Sakshis get power through Raimas and Rajnaths only who feed that monster. If Sakshi sets fires, then Raima types add fuel to fire or help cover it up as accident. These open marriage types, obsessive affair types all suck. In his bid to sweet talk Sakshi into giving tapes Rajnath along with Raima just fuelled her ego more. They should not have become used to her.
Raima type enablers of crime are equally dangerous. If not more.
Her love for Rajnath is as mad as Sakshi's love for Shaurya so much so that she got ready to have open marriage with Jatin, ready to plot against Shaurya, ready to get Sakshi bumped off and participated in each crime for 25 years. She never questioned Rajnath why he did something so terrible that he was scared and forced to marry Sakshi. Or why she should carry on drama, partner in crimes for years?
I basically see it as chain reaction unleashed by those who misuse power like Rajnaths. They make mess. Then ones who have no anchor like Sakshi get chance to be monsters. Raimas become mini monsters or feed monsters. Even innocent ones who get wronged or trapped like Nitya, have to resort to destructive paths then.
Lastly my head begins to spin discussing evilness of all villains. They all suck. No comparison or grading for me.