Director Siddharth Anand has said that there was no better day to release the teaser of 'Pathaan' than Shah Rukh Khan's birthday. "The craze for a glimpse of 'Pathaan' has been unprecedented. After a long, long time there's [an] insane buzz for a film that's genuine and organic...it's all due to the super stardom of...Shah Rukh," he added.