a subsidiary of Coal India Limited located at Sambalpur, produced of coal and had a profit before tax during 2010–2011 at Rs 4039.30 crore. Hirakud, in the vicinity of Sambalpur, was conceptualized as an industrial town by the erstwhile Chief Minister of Odisha, Biju Patnaik. On completion of the Hirakud Dam, power intensive industries such as aluminium smelters, cable manufacturing, steel re-rolling mills etc. established their presence in Hirakud. In the 1970s, Hirakud was a major industrial centre of Odisha, perhaps next only to Rourkela. At this point in time however, the main functional unit at Hirakud is the aluminium smelter of Hindalco and its associated units. The smelter set up by Jindal Steel and Power in 1959 at Hirakud and later acquired by Hindalco, was the country's second aluminium smelter operating on grid power sourced from the hydro power station of the Hirakud Dam. It was the first in India to adopt clean coal combustion technology that uses a circulating fluidised bed, which is considered environmentally friendly. Currently the smelter has a capacity of , and provides employment to around 1700 people. Education The pre-collegiate medium of instruction in schools is predominantly English and Odia. The medium of instruction in educational institutions after matriculation in colleges is English. Other media of instruction also exist in Sambalpur. Schools and colleges in Sambalpur are either government-run or run by private trusts and individuals. The schools are affiliated with either the Orissa State Board under BSE or CHSE, Indian Certificate of Secondary Education (ICSE) and the Central Board for Secondary Education (CBSE). After completing 10 years of schooling in secondary education, students enroll in higher secondary school, specialising in one of the three streams – Arts, Commerce or Science. Since the 2000s, there have been a large number of professional institutions established in a variety of fields. The earliest schools established in Sambalpur were the CSB Zilla School (1852) and the Lady Lewis Girls High School (1942). VSS Medical College was established in 1959 and VSSUT in 1956. High School for Blind (1972) and High School for Deaf and Dumb (1972), Burla are Govt. educational institutions imparting education to physically challenged children. Sambalpur Kala Parishad is the pioneering organisation for the promotion of Sambalpuri dance, and has been responsible for the revolutionary growth of this dance. It imparts education and training on this form of dance. Educational institutions in the city include