A BTS video from Karthi’s next film Japan is trending onlinePost the success of “Sardar,” Karthi and director Raju Murugan are now working on his next movie. Japan, the actor’s 25th film, debuted with the publication of its first look poster on November 14. Following the muhurat puja on November 10, Karthi also started shooting for the movie. The creators of “Japan” have now released []