Sundergarh District, also spelled Sundargarh District, is a district in the northwestern part of Orissa state in eastern India. Sundargarh district is bound by Raigarh district of Chhattisgarh in the west, Jashpur district of Chhattisgarh in the North-West, Simdega district of Jharkhand in the North, West Singhbhum district of Jharkhand and Keonjhar district of Orissa in the east and Jharsuguda, Sambalpur and Deogarh districts of Orissa in the South. The town of Sundergarh is the district headquarters.

Sundargarh district forms the North western part of Orissa state and is the Second largest district in the state accounting for 6.23% of the total area. Geographical Area of the district is 9712 km². The district spreads from 21°36′N to 22°32′N and from 83°32′E to 85°22′E.

Two princely States of Gangpur and Bonaigarh constitute the present district of Sundargarh, consequent upon merger of the princely States in 1 January 1948. It is understood that, in ancient times, this district was under the rulers of South Kosala. However, divergent views are available regarding the origin of the ruling family. Bonaigarh was known as Bonai Mandala and was ruled by Mayura dynasty as a feudetory of Bhoumakara dynasty of Utkala.The present royal family of Gangpur belongs to the Parmar dynasty and Bonaigarh belongs to Kadamba dynasty. These ex-states were under the suzerainty of Sambalpur which formed part of the dominion of the Maratha Rajas of Nagpur. They were ceded to the British Government in 1803 by the Maratha Chief Raghuji Bhonsla of Nagpur under the treaty of Deogaon(near Rourkela). But they were restored to him by special engagement in 1806. They were finally ceded in 1826. In 1905, these two princly states were transferred from the control of the commissioner of Chhotanagur to that of Orissa Division and a separate Political Agent was appointed.

Amit Patel is an Indian American cardiac surgeon and Director of Clinical Regenerative Medicine and Tissue Engineering at the University of Utah. He studied medicine at the Case Western Reserve University. In 2002, he led a "breakthrough" study demonstrating that stem cell transplantation could treat congestive heart failure. He is currently the national lead investigator for Aastrom Biosciences to treat cardiomyopathy both ischemic and non-ischemic using adult stem cells in the U.S. He is also lead investigator for a number of trials to use adult stem cells to treat limb ischemia (inadequate blood flow to the leg). He has taught many surgeons around the world in countries such as Thailand and India. Notable patients of his include Hawaiian singer Don Ho; Ho credited Patel's 2005 procedure on him with saving his life and allowing him to return to performing after being forced into retirement for health reasons. He is currently working on programs for Type 2 Diabetes, Burn Wound Therapies with the U.S. Military & Arteriocyte, Traumatic Brain Injury and Plastic resconstruction. He has started collaborative programs in Peru, Argentina, Ecuador, Germany, and India. His newest program is to treat heart failure patients with one day out patient cell therapies - Harvest.He has recently developed a stem cell spray for rapid healing of heart surgery and burns. http://www.cnn.com/video/#/video/us/2010/12/22/nr.spray.on.stem.cell.cnn?iref=allsearch