Listen to Janu Byan online. Janu Byan is a Rajasthani language song and is sung by Mithulal Gujar. Janu Byan, from the album Ghayal Kar Gai Dj Nachvali, was released in the year 2017. The duration of the song is 6:40. Download Rajasthani songs online from JioSaavn.