Poo and Gauri might feel that they have thrown Kalpi and Kamla out in the cold but they do not realize that when the truth comes out it will be doomsday for them. They might think that Raghav is at their side but when he knows how he was cheated he will throw both of them out of the house and cut his mom out of his life. It's a two edged sword and Gauri and Poo do not grasp that it can hurt them too.
Even if it happens after a year; when the truth is out they won't find a place to hide. After all if all good things come to an end than all bad things also come to an end. So Gauri and Pakhi, watch your back, life might just play a cruel joke on you sometime, in the same way as you have been playing with other peoples lives.