You would never know it but “serious” Ajay Devgan is quite the prankster and makes it known especially to his co-stars during film shoots. During a recent shoot for film Halla Bol it was no different and he had director Rajkumar Santoshi play along to help entrap actress Vidya Balan.

Balan and Santoshi were discussing a scene when Devgan came in and began praising the recording of a song they had just done for the film; Santoshi agreed. Vidya became curious, and of course Devgan had his Ipod handy. He offered it to her so that she could listen to it.

As soon as the actress turned it on, she got a mild electric shock, one strong enough to stun her for a moment. Balan took the joke with a sporting attitude and the whole crew, including Devgan and Santoshi enjoyed a good laugh at her reaction.