Listen to Unchahar Ke Rangbaj online. Unchahar Ke Rangbaj is a Bhojpuri language song and is sung by Sandeep Kumar. Unchahar Ke Rangbaj, from the album Unchahar Ke Rangbaj, was released in the year 2025. The duration of the song is 3:06. Download Bhojpuri songs online from JioSaavn.