Step 1: Trace the path of the Luni River. The Luni River originates in the Pushkar valley of the Aravalli Range, near Ajmer.
Step 2: Determine its general direction. It flows towards the southwest through the Thar Desert in Rajasthan and finally ends its journey in the marshy lands of Rann of Kutch in Gujarat. The overall direction of its flow is towards the west.