Naranag also known as Narain Nag is a beautiful spring situated close to the village of Khag. This spring is believed to originate from the Tosamaidan Lake. The spring unites with the lake after flowing for many kilometres under the ground.
Legend has it that the connection between Tosamaidan and the Naranag was made many years ago when an ascetic travelling through the area discovered it. He was travelling with a bag of sheep dung, which he dropped into Tosamaidan Lake by accident. The ascetic was very surprised to see the dung floating on the surface of the Naranag a few days later. Understanding the implications and to clear his doubt, he went back to Tosamaidan and poured some turmeric powder into the water of the lake. A few days later the water of the spring turned yellow confirming his belief.