Listen to Formation Of Indian National Army online. Formation Of Indian National Army is a Bengali language song and is sung by Rupa Gangully, Ritwick Chakraborty and Rajatava Dutta Roni. Formation Of Indian National Army, from the album Bose, Vol. 4, was released in the year 2014. The duration of the song is 9:25. Download Bengali songs online from JioSaavn.