Listen to A Dewar Dabna Tani online. A Dewar Dabna Tani is a Bhojpuri language song and is sung by Basu Bahar and Abhay-Bablu. A Dewar Dabna Tani, from the album Tonik Se Kam Naikhe, was released in the year 2015. The duration of the song is 4:33. Download Bhojpuri songs online from JioSaavn.