Ahead of International Joke Day (July 1), actor Aasif Sheikh has revealed how while working on the sets of the sitcom `Bhabiji Ghar Par Hai`, he often improvised jokes that ended up in the script and became a hit with the fans. 

Aasif, who plays Vibhuti Mishra in the popular show, shared his personal experience of unscripted moments on sets that led to the creation of iconic lines.