Listen to Introduction- By Ranjon Ghoshal online. Introduction- By Ranjon Ghoshal is a Bengali language song and is sung by Ranjon Ghoshal. Introduction- By Ranjon Ghoshal, from the album Anirban Rabindranath - Aghater Gan, was released in the year 2012. The duration of the song is 1:18. Download Bengali songs online from JioSaavn.