Newer alluvium is predominately found in districts of Muzaffarpur, Darbhanga, and Champaran. The alluvium soil is considered as the most fertile soil, and it is predominantly found in the northern plain of India, and it is divided into two types viz khadar and banger. The Khadar is composed of newer alluvium and form most of the fertile Ganges plain. The Banger is the older one and is less fertile as compare to Khadar.