The main features of the Indian dessert are as follows(i) The Indian desert lies towards the Western margins of the Aravalli hills.(ii) It is an undulating sandy plain covered with sand dunes.(iii) This region receives very low rainfall, below 150 mm per year. It has an arid climate with low vegetation cover.(iv) Streams appear during the rainy season. Soon after, they disappear into the sand as they do not have enough water.(v) Luni is the only large river in this region. Barchans (crescent shaped dunes) cover larger areas, but longitudinal dunes become more prominent near the Indo-Pakistan border.