In the middle of the shooting schedule, producer decided to let the actors take a break for two days. However, on the first day, Celina was woken up by a call from Upen who pretended to be the film's production assistant and told her that the break was called off and shooting will begin in a few hours.
Then what, Celina jumped out of the bed, summoned her hairdresser and make-up man, got ready and left for the sets.
When she reached, she got a call from Upen who called her from his mobile number and spoke in his usual voice. Upen told her that he had played a joke on her. So Celina had to return.
Obviously Celina did not like the prank and was a bit upset. But looking back now, she finds the prank funny.