The three main features of the soil found in the river deltas of the Indian coast (Alluvial Soil) are
(i) These soils are more common in the piedmont plains or plains at the foothills such as Duars, Chos and Terai.
(ii) It is also known as transported soil, as the soil has been transported by the rivers to its current location.
(iii) It can also be described on the basis of age. The older alluvial soil, further away from the rivers, is known as Bangar, whereas the newer soil near the rivers is known as khadar.