The Koderma district is situated 165 KM far away from Ranchi the capital of Jharkhand. Spread over 1655.61 square kilometers, the main river of the district is Barakar, Barsoi and Sakri, while the main city is Jhumri Tilaiya. Koderma district has one Sub-division, Kodarma itself and 6 (Six) revenue circles. For developmental administration the district is divided into 6 (Six) developmental blocks namely: Koderma, Jainagar, Chandwara, Markachho, Satgawan and Domchanch. There are 717 (Seven Hundred Seventeen) Villages and 109 (One Hundred Nine) Panchayats. This district Famous by the name of the Mica city.