The Banga-desh is a land of the two mighty rivers of India, one flows from east and other one from west. The area covered jointly by these two rivers were probably known as “Ganga Lohit Desha”, which gradually became Gangalo Desh and Gangal Desh and then to Bangal Desh or Bangla desh or Bangadesha. Bangalo in place of Gangal is probably used to differentiate from the land of Ganga, i.e., from Hardwar onwards along the route of Ganga.