Mumbai, Aug. 13 -- Alkem Laboratories Ltd is up for a third straight session in a row. The stock is quoting at Rs 5375, up 4.39% on the day as on 12:49 IST on the NSE. The benchmark NIFTY is up around 0.56% on the day, quoting at 24624.55. The Sensex is at 80559.71, up 0.4%. Alkem Laboratories Ltd has added around 11.04% in last one month. Meanwhile, Nifty Pharma index of which Alkem Laboratories Ltd is a constituent, has added around 1.12% in last one month and is currently quoting at 21753.5, up 1.87% on the day. The volume in the stock stood at 6.88 lakh shares today, compared to the daily average of 1.35 lakh shares in last one month. The benchmark August futures contract for the stock is quoting at Rs 5393.5, up 4.29% on the day. Alk...