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- Indian desert lies towards the western margins of Aravalli hills.
- It is an undulating sandy plain covered with sand dunes.
- This region receives very low rainfall 150mm per year. It has arid climate with low vegetation.
- Streams appear during rainy season and disappear into the sand soon as they do not have enough water to reach the sea.
- Luni is the only large river in this region.
- Barchans are crescent-shaped sand dunes produced by the action of wind predominately from one direction.
- They cover larger areas but longitudinal dunes become more prominent near the Indo Pakistan boundary. These are also visible in Jaisalmer.
