a group of saraks from northern parts of purulia district migrated to the subarnarekha valley and established a small state by the name ruam. there is a village existing by the same name in musabani block of east singhbhum district very close the uranium town of jaduguda. they are the people who started mining of copper ore for the first time in singhbhum shear zone which is now famous for mining of precious metals such as copper, gold, silver and uranium. the saraks of ruam also mastered the art of smelting of copper. it is also evident that famous ancient port of tamralipta owes its name to the copper mined and processed in the sarak country of ruam which was exported to the south east asian kingdoms in a large scale.