Rourkela is a city located in the northern border of the Indian state of Orissa. It is situated about 340 kilometers (211 mi) north of state capital Bhubaneswar, and is surrounded by a range of hills and encircled by rivers. The city is also popularly known as Ispat Nagar and also as the Steel City of Orissa. It has one of the largest steel plants of the Steel Authority of India Limited (SAIL) known as Rourkela Steel Plant. Rourkela is the industrial capital of Orissa. It has industries of all sizes. The city is known internationally for iron & steel trades. Recent up spurt in iron & steel pricing has seen a lot of industries of all sizes coming in and around Rourkela. The city is near the source of raw materials. The name Rourkela originates from the local tribal language of Sadri which means "Our Village". It comes under Sundergarh district of the Indian state of Orissa. An indigenous community called Raulia used to inhabit this region. Red and soils are found here which are quite rich in minerals. Rourkela is situated in a hilly region. A small hill range named Durgapur runs from the heart of the town dividing it into plant area and the steel township. The name "Durgapur" comes from an old village existed at the foothills long time ago before the plant was set up. The Koel and Sankha rivers meet at Vedvyas, Rourkela and flow as a single river called Brahmani. The best time to visit the destination is from October to March.