Filmmaker Nagesh Kukunoor has brought us another soul-stirring rendition of the popular Sufi song 'Dum-A-Dum Mast Qalandar’ in his upcoming film ‘Dhanak’ (Rainbow). The classic has been picturised on the eight-year visually-impaired old Chotu, who is travelling across the Rajasthan desert with his elder sister Pari to meet Shahrukh Khan, in the hope that the superstar will help him get his eyesight back.