I wish the story should go like this
Aastha as Bharkha fall in love for Shlok and confess her love towards him!
Shlok will decline this and will say that he can't love any women other than his Aastha not only this birth but also next 7 births.
This will create more impression over him.
IS could not tolerate this and will hire goons( Raghu may be) to kill Shlok.
Bharkha over hears this and wants to save shlok and regains her memory back
Then IS revenge track by shlok starts
( IS has taken another man wife and turned into his Bharkha! If Bharkha Loves Shlok it is a shame for him)