Gandhamardhan Hills is a hill located in between the Balangir district of Odisha. This hill is well known for its medicinal plants. Gandhamardan Parvat is the Best Hill Stations In Odisha. There is a Bauxite reserve that is planned for exploration by the state government through a private venture. This hill also has a lot of historic importance as it was once a seat of Buddhist culture. To date, many ruins are found on the plateau at the hilltop. According to Hindu theology, Lord Hanuman carried this hill on his shoulders from the Himalayas to save the life of Laxman.
In the Treaty Yug (the Silver Age), Sushena (the expert physician in the Vanara Sena that followed Ram) had suggested Vir Hanuman bring Bisalyakarani ere dawn so that Laxman would rise back to life. It was in the middle of the war between Lord Ram and Ravan. Hanuman failed to identify the particular herb and carried on his shoulders a huge Himalayan mass. While flying above and proceeding toward Lanka (the kingdom of Ravan), a portion dropped down. Gandhamardhan Hills is synonymous with that portion only. On the northern slope of this hill, the Nursinghanath Temple is located. Whereas on the southern slope of this hill is the famous Harishankar Temple. Gandhamardhan Parvat is one of the famous hill stations in Odisha. (Source)