Ok, lets come up with some fun or serious theories about Pallavi's past. This is all in the name of fun, please no character bashing.
Here is my theory. Her mom must have had an affair with someone and that is why Pallavi's birth cert has no father name. So, my theory is that it has something to do with someone influential who got Pallavi's mother pregnant and Sunny will find out. That is why Mandhar wants Pallavi so he can get back at that person, or get the money. Im trying to figure out how Sunny is involved, could he maybe be her cousin? Or something silly like Ved be her brother....🤣