Simdega falls under the erstwhile Biru kingdom of yesteryear. The kings of Birugarh whose ancestors were from great Ganga Vamsi (Gajapati) royal family of Kalinga-Utkala Empire (Odisha) ruled over this region for centuries, even during the British Colonial era. The royal family still resides at Biru or Birugarh village which is situated at a distance of about 11 km from District headquarter, Simdega on N.H. 23. This region of beautiful plateau is inhabited by the simple adivasis (tribals) in great majority. This small village now evolving into a semi-township, has been popular to the missionaries, who established convents, hospitals and parishes on the lands donated by the Biru Kings and its subordinates. The missionaries on the one hand spread Christianity in this tribal region where early there were mainly nature worshipers and Hindus but on the other hand the missionary also helped in spreading the education with opening several Christian schools in remote areas. Being in the south Jharkhand the language has been the sweet Nagpuri - whose offshoots are the now Sadri in many forms and adaptability. Nagpuri language is the blend of two Indo-Aryan language Oriya & Angika. Other languages spoken by the local adivasi tribes are Mundari, Oraon, Khadia etc. This region is highly influenced by Oriya culture as this area was ruled by the Oriya Kings. From centuries the Kings of Biru invited Brahmin scholars from Odisha to this region and gradually these Oriya Brahmins settled in every conrner of Biru Kingdom, even in present day in remote villages of this region one can trace these Oriya Brahmins families. The Biru Kings had donated acres of land & even villages & Zamindaris to them. The other Oriya communities of this region are Vaishnava( Babaji), Goldsmith, Mahakud (Gauda or Yadava), blacksmith & Bhuiyan or Rout. These Oriya communities still follow their own traditions,customs & rituals.The business class(mostly dominated by Marwari & Baniya)