Mumbai, July 4 -- Glenmark Pharmaceuticals Ltd gained for a fifth straight session today. The stock is quoting at Rs 1812.1, up 1.6% on the day as on 12:44 IST on the NSE. The benchmark NIFTY is down around 0.18% on the day, quoting at 25360.65. The Sensex is at 83104.96, down 0.16%. Glenmark Pharmaceuticals Ltd has gained around 14.34% in last one month. Meanwhile, Nifty Pharma index of which Glenmark Pharmaceuticals Ltd is a constituent, has gained around 3.4% in last one month and is currently quoting at 22204.25, up 0.79% on the day. The volume in the stock stood at 3.99 lakh shares today, compared to the daily average of 10.37 lakh shares in last one month. The benchmark July futures contract for the stock is quoting at Rs 1821.7, up...