Listen to Gavna Hoi Kab Hamar online. Gavna Hoi Kab Hamar is a Bhojpuri language song and is sung by Sanjay Dubey. Gavna Hoi Kab Hamar, from the album Rang Dalvala Gori, was released in the year 2015. The duration of the song is 8:38. Download Bhojpuri songs online from JioSaavn.