Mumbai, Sept. 4 -- National Aluminium Company Ltd gained for a fifth straight session today. The stock is quoting at Rs 208.53, up 0.68% on the day as on 12:44 IST on the NSE. The benchmark NIFTY is up around 0.42% on the day, quoting at 24819.35. The Sensex is at 81019.27, up 0.56%. National Aluminium Company Ltd has gained around 11.36% in last one month. Meanwhile, Nifty Metal index of which National Aluminium Company Ltd is a constituent, has gained around 3.4% in last one month and is currently quoting at 9676.4, down 0.24% on the day. The volume in the stock stood at 49.62 lakh shares today, compared to the daily average of 67.01 lakh shares in last one month. The benchmark September futures contract for the stock is quoting at Rs 2...