Listen to Kaha Number Busy Tha online. Kaha Number Busy Tha is a Bhojpuri language song and is sung by Bulbul Tiwari. Kaha Number Busy Tha, from the album Kaha Number Busy Tha, was released in the year 2021. The duration of the song is 3:42. Download Bhojpuri songs online from JioSaavn.