Listen to Hum Tum Gumsum Raat online. Hum Tum Gumsum Raat is a Hindi language song and is sung by Kishore Kumar and Asha Bhosle. Hum Tum Gumsum Raat, from the album Hum Shakal, was released in the year 1974. The duration of the song is 4:45. Download Hindi songs online from JioSaavn.