Listen to Koyal Bole Mithi Bol Ho online. Koyal Bole Mithi Bol Ho is a Bhojpuri language song and is sung by Dilip Chandar. Koyal Bole Mithi Bol Ho, from the album Mehnatiya Bhaeya, was released in the year 2014. The duration of the song is 6:24. Download Bhojpuri songs online from JioSaavn.