Here are the following reasons:
1. Sakshi 's suspicion about Akash's sudden return to the GM on his day off. And the hidden camera scene.
2. Sakshi will either plan to kidnap or kill Payal, ( because the actress who plays Payal is planning to quit the show).
These are the only two hints, I get from Sakshi's new plan. Because either Akash might have been caught by her or she is really planning to kill payal for good.
If Shaurya,as her own son who has inherited her blood and genes can rape or attempt to murder someone. Then Sakshi is beyond that, she has no fear in killing anyone to protect her malicious son from Durga (whom she considers, as her biggest rival)
Also as a child, If she can steal a piece of bread from a dog's mouth, than she can do anything to protect Shaurya and her family's reputation
In short, Durga stole Akash when Navin Mahtur from the Goeka's side fired him. And Durga made him her ally. Now Sakshi will steal Akash to counterattack Durga.