Sindri is a town in the Indian state of Jharkhand.Sindri is an industrial township within the Dhanbad municipal limits of the Dhanbad District of Jharkhand state. Sindri was well known because of a large Fertilizer factory (Fertilizer Corporation of India Limited - FCI, closed in 2002) conceived here in the early industrialized India. It was also known for few other companies situated here such as ACC Limited (formerly Associated Cement Company Limited), Coal Mines of Indian Iron and Steel Company (IISCo), which has been taken over by Steel Authority of India Limited (SAIL) and Projects and Development India Limited (PDIL), formerly Planning & Development Division of FCI and Coal Mines of the Bharat Coking Coal Limited, a subsidiary company of Coal India Limited. Another subject of topographical importance is the Damodar river which acted both as source of water and electricity for the township. A hydro-power power project called Damodar Valley Corporation (DVC) is located at Maithon and Panchet near Sindri. DVC supplies eco-friendly electricity to some its neighbouring states like West Bengal, Bihar and Orissa.As per the records of the now-closed fertilizer plant (FCIL), the name Sindri was the corrupt form of the word Sindoori (Vermilion). Also the meaning of sindri in Hindi is sundari. The small town is green and beautiful. The name is said to be given by the local tribals because of the vermilion coloured soil found here. Technically the type of soil available in the area is Laterite which has got a vermilion coloured or reddish hue. The word Sindri is also said to be a part of the Mundari lexicon. Mundari is a language spoken by the indigenous people who have lived in and around this place for a long time. It roughly translates into "Ridge" or "Frontier." There are some evidences available that centuries ago the Santhals, Mundas and Hos inhabited the banks of the Sindhu River. They were later forced to move to Eastern part of the country by the Aryans.