Who is the blackmailer?

Who in your opinion is blackmailing Saloni...

Kaki sa?? - i dont think she is... coz she is so obvious. No surprise eliment at all.

Jijji?? - I dont think she is interested in sending Sal out of the house..If chance given she would like to throw Tara out..

Vrinda- there is a chance definitely... n somehow i feel she is the one! but donno what she is blackmailing Saloni with...

Neel cant be the person...coz i think he wont do this kind of thing again...once he tried n failed...n thats all

Abhi _ there is slight chance... coz he has a reason to hate Saloni.. but he needs to be alive to do all this.. considering todays soaps...tats always possible...anyone can come back to life.. just like that!

So, what do you think... who is that blackmailer...??