Listen to Kya Hua Tera Vada - What Happened To Your Promise (Hum Kisi Se Kum Nahin) online. Kya Hua Tera Vada - What Happened To Your Promise (Hum Kisi Se Kum Nahin) is a Bengali language song and is sung by Sonu Nigam, Gunjan and Cbso. Kya Hua Tera Vada - What Happened To Your Promise (Hum Kisi Se Kum Nahin), from the album Rafi Resurrected - Vol 1, was released in the year 1994. The duration of the song is 4:26. Download Bengali songs online from JioSaavn.