Listen to Tumi Nirmal Koro online. Tumi Nirmal Koro is a Bengali language song and is sung by Shila Das (Mili) and Rana Dhanuka. Tumi Nirmal Koro, from the album Prothom Sonar Dhan, was released in the year 2013. The duration of the song is 4:39. Download Bengali songs online from JioSaavn.