Can Pia be also a pawn?????

I am confused..........Why would Pia drug Jai?? When she was not aware of Bani's feeling for Jai. Nor was she sure whom Jai will choose between them!!!!!! Her obsession with Jai started after the ONS and Jai ignoring her!!!!! She has been shown loving sister until then!!So what could be the reason for Pia to trap Jai?

Could Pia be a pawn, used by someone to trouble Jai??? The same person who made the CD. Same person who has been trying to kill Jai since time immemorable!!!! Is Pia being blackmailed into doing so?

Would love your views on this....

hmm thas a possible positive thought about pia...jigs was her partner in crime so maybe it was her wild idea or maybe shez playing a nasty game or wut about Gohar khan(can't rem. her name in the serial)it culd be one of her chaal? the baby is pushy's for sure...i dun't wan this luv and faith btwn sisters to fade or become ugly i mean it's jus too much...i so wish pia is doing all this to save both jai and bani's lives...let's hope for best :)

she knew jai wouldnt fall for her therefore she had to have him in a compromising position so that she could force his hand.