Listen to Kwchang Kwchang Boyar online. Kwchang Kwchang Boyar is an Assamese language song and is sung by Biswanath Debbarma and Manasi Debbarma. Kwchang Kwchang Boyar, from the album Wansukma Angle, was released in the year 2010. The duration of the song is 5:21. Download Assamese songs online from JioSaavn.