Listen to Onek Kotha Bolechelem online. Onek Kotha Bolechelem is a Bengali language song and is sung by Swagatalakshmi Dasgupta. Onek Kotha Bolechelem, from the album Ekla Gitabitan Vol. 25, was released in the year 2012. The duration of the song is 3:16. Download Bengali songs online from JioSaavn.