twilight scenes of "Maa" were a particular issue for the production crew. Because the specific lighting only lasted ten to fifteen minutes a day, the scenes took nearly ten evenings to film. Production at one time considered having a child singing, but ultimately deemed it too over the top and felt it would connect to more people if sung by an adult. Shankar initially performed the song as a sample—they planned to replace him with another singer—but production eventually decided that his rendition was best. Ishaan's truancy scene—he leaves school one day after realizing that his mother has not signed his failed math test—originally coincided with the song "Kholo Kholo," but Khan did not believe it worked well for the situation. In his opinion, the accompanying song should focus on what a child wants—to be free—and be told from the first-person perspective instead of "Kholo Kholos second person. When Khan took over as director, he opted to use "Mera Jahan"—a song written by Gupte—and moved "Kholo Kholo" to the art fair. Viewers of test screenings were divided over the truancy scene. Half thoroughly enjoyed it but the rest complained that it was too long, did not make sense, and merely showed "touristy" visuals of Mumbai. Khan nevertheless kept the scene, because he "connected deeply" with it and felt that it established Ishaan's world. Shiamak Davar choreographed the dance sequence of "Bum Bum Bole," and was given free rein over its design. He had intended to use 40 students from his dance school, but Khan did not want trained dancers. Davar gave the children certain cues and a general idea of what to do, but left the style and final product up to them to avoid a choreographed appearance. Time constraints meant that while Khan was busy filming "Bum Bum Bole," Ram Madhvani took over as director for "Bheja Kum". The latter sequence, containing a "fun-filled" song of rhythmic dialogue, allowed the audience to perceive how Ishaan sees the world and written languages. It was intended to represent "a young boy's worst nightmare, in terms of ... the worst thing that he can think of"; Madhvani based the visual concept on his son's fear of "creepy-crawlies" such as cockroaches, dragonflies, and lizards. Tata Elxsi's Visual Computing Labs made the creatures out of the English alphabet and numbers, although Khan insisted they include the Hindi alphabet as not all the audience would