Listen to Phone Busy Batawai Chau online. Phone Busy Batawai Chau is a Maithili language song and is sung by Rajnish Singh. Phone Busy Batawai Chau, from the album Paro Lahnaga Ugharo, was released in the year 2023. The duration of the song is 3:15. Download Maithili songs online from JioSaavn.