To start learning Kumar Sanu - Hum Kahe Na Kahe chords, build your understanding on these basic chords - Gm, Ab, Cm, Gm, C, Gm, Eb, Bb and Cm in sequence. Ease into the song by practicing at 45 BPM before reaching the track's full tempo of 91 BPM. Given the song's key of C Minor, adjust the capo to align with your vocal range and chord preference.