Listen to Ka Hum Batayi Kitna Khushi Baa online. Ka Hum Batayi Kitna Khushi Baa is a Bhojpuri language song and is sung by Udit Narayan and Kalpana. Ka Hum Batayi Kitna Khushi Baa, from the album Mehandi Rachayib Tohre Naam Ki, was released in the year 2009. The duration of the song is 2:31. Download Bhojpuri songs online from JioSaavn.