Listen to Balmaa 420 (Maithili) online. Balmaa 420 (Maithili) is a Bhojpuri language song and is sung by Indu Sonali. Balmaa 420 (Maithili), from the album Balmaa 420, was released in the year 2021. The duration of the song is 5:01. Download Bhojpuri songs online from JioSaavn.