Listen to Kar Debau Mardar online. Kar Debau Mardar is a Bhojpuri language song and is sung by Sunny Yadav and Ridhi Raj. Kar Debau Mardar, from the album Kar Debau Mardar, was released in the year 2025. The duration of the song is 3:36. Download Bhojpuri songs online from JioSaavn.