Listen to Daak Bum online. Daak Bum is a Bhojpuri language song and is sung by Ajit Anand, Rupam Verma, Bhola Pandey and Hema Dhyani. Daak Bum, from the album Bihari Bam, was released in the year 2019. The duration of the song is 5:12. Download Bhojpuri songs online from JioSaavn.