The instrumental version, often used as a ringtone by fans of classic cinema, is centered around a distinctive, suspenseful guitar riff and a sweeping orchestral arrangement. It serves several cinematic purposes:
Khayyam, the composer of the original music for "Karz", has spoken about the enduring popularity of "Ek Hasi Thi". In an interview, he mentioned that he was amazed by the response to the instrumental version, which he attributed to the song's timeless appeal. Khayyam also revealed that he had experimented with the melody, using a combination of Western and Indian instruments to create a unique sound. ek%20hasina%20thi%20instrumental%20ringtone%20karz