This is indeed a fab scenario. And, if the cvs are smart, they should take this route. Only, I'm not comfortable with the prank...pakhi as usual being clueless.
To be honest, I was getting a little wrought with all the Raghav bashing in the forum. A character like Raghav's can't be built up with such care and nuanced is such a way only to be brought down in one fell swoop.
The only thing that worries me in all this is the utterly devastated look on his face when he was approaching Kalpi. If this is a joke after all...and, it has to be Pakhi's idea not Raghav's...he ought not to have allowed it. And, if it indeed was a prank, how does it explain the length of time it took them to come to the chawl? The wedding was to take place at 2 pm...it was very dark when they arrived.