Listen to Dhun - Bismillah Khan & Vilayat Khan online. Dhun - Bismillah Khan & Vilayat Khan is a Bhojpuri language song and is sung by Bismillah Khan and Vilayat Khan. Dhun - Bismillah Khan & Vilayat Khan, from the album Nandkalyan Dhun, was released in the year 1994. The duration of the song is 9:36. Download Bhojpuri songs online from JioSaavn.