(a) The Indian desert lies to the west of the Aravali hills. It is an uneven sandy plain covered with sand dunes.

(b) Barchans (crescent-shaped sand dunes) cover a larger part of the desert. Near the Indo-Pakistan border, longitudinal sand dunes are more common.

(c) It has arid climate with scarce vegetation and rainfall below 150 mm per year.

(d) Rivers/streams appear only during the rainy season and soon afterward disappear in the sand. They do not have enough water to reach the sea. J River Luni is the only large river in this area.