It is at the point where the Sutlej waters enter Rajasthan, and where it entered the erstwhile Bikaner State. It is said by the elders that this area first came under the jurisdiction of Bahawalpur state. But due to the large open area, the area was unguarded, and Hindu Mal (a companion of Maharaja Ganga Singh) took advantage of this opportunity and moved the posts along the boundary. He started his journey to change posts from Suratgarh in the south, and went till what is now Hindumalkot in the north. He informed the Maharaja about his successful invasion of the area when he reached the northern part and thereafter died, giving name to the city Hindumalkot.