It's not the first time that Ranbir Kapoor has played prank on his Yeh Jawaani Hai Deewani co-stars. During the shoot of a wedding scene, the actor's prank on Kalki Koechlin put her and him in a bit of a spot, quite literally! A source says, "Ranbir, who was in a mischievous mood, was supposed to apply a small amount of turmeric paste on Kalki's face. But instead of applying a little paste on her face for the shot, Ranbir went ahead and plastered it all over.

To make things worse, Kalki's sensitive skin reacted badly." Although the 29-year-old actress took the whole episode sportingly, the shooting came to a standstill. "Kalki couldn't shoot for two days as the rashes were quite visible. So the unit thought of waiting for her skin to go back to normal. It was very difficult to do the scene again as we were scared what if she develops the rash again?" laughs the source. The second time around, however, there were no pranks and the shoot went off smoothly.