It's a guess
I think Bani comes to know that ranveer made jai sign the papers and is planning to take over the property. So if someone else claims for the property before he does, the papers ranveer has would not be valid. remember ranveer goes to lawyer, when he is abt announce the takeover. I think thru his lawyer he comes to know that bani claimed for alimony, and withdraws his plans.
So dont be angry with Bani, she must be having solid reason for this, as all ekta's heriones have, when they act wierd.