छत्तीसगढ़ कोरबा जिले में देश के प्रथम एल्युमिनियम संयंत्र कब स्थापित किया गया था ? - Chhattisgarh When was the country's first aluminum plant established in Korba district? - Chattishgadh Korba Jile Me Desh Ke Pratham Aluminium Sayantra Kab Sthapit Kiya Gaya Tha ? Chhattisgarh Gk in hindi, Gk Quiz 23 February , 1960 question answers in hindi pdf 15 December , 1972 questions in hindi, Know About 27 November , 1965 Chhattisgarh Gk online test Chhattisgarh Gk notes in hindi quiz book 27 January , 1965