Shelly has an enmity with Abha, perhaps over Karan's loyalty to her. Not to mention Shelly is just a truly bad person, without even trying. She reminds me of Jagmohan in a sari. How appropriate that she is the badi bahu of the house.
I think Shelly will use the bed and payal against Abha. And I think this will happen around the time of her engagement/wedding.
What do you think?