It was a 'chowkidaar?s? late night rounds that inspired the philosophy behind 3 Idiots and its music. In the area where director Rajkumar Hirani lived, in his hometown Nagpur, a watchman would walk around the entire night to ensure the safety of residents. ?He would hit his stick on the ground and shout out ?Jaagte raho??, remembers Hirani. ?And occasionally, just so that everyone slept peacefully, he would shout out ?All is well!??