Ok... this struck me as soon as I read the update.
So in last week's episode they show that Vidya jumps out and when she is leaving is when Sindoora sees her while she was in her room with Aniket. She then calls Balwant and asks him to follow her and tape her.
She called Balwant after Vidya had already jumped and left so how can all that be captured in the video unless Sindoora knew from before she was going to do so and was standing with her camera waiting for this to happen.
Weirdos..