Listen to Kab Gawana Hamar Karaiba Raja online. Kab Gawana Hamar Karaiba Raja is a Bhojpuri language song and is sung by Kumari Usha. Kab Gawana Hamar Karaiba Raja, from the album Maal Hai Thok Li, was released in the year 2015. The duration of the song is 3:44. Download Bhojpuri songs online from JioSaavn.