Chalo Ek Baar is sung by Mahendra Kapoor, a noted playback singer known for his patriotic and powerful songs. Mahendra Kapoor had a distinctive baritone voice and frequently sang for actors like Manoj Kumar and others. While Kishore Kumar, Mohd. Rafi, and Hemant Kumar were all legendary singers, this particular song is associated with Mahendra Kapoor's rendition.