Mumbai, July 27 -- Zydus Lifesciences Ltd dropped for a fifth straight session today. The stock is quoting at Rs 1106.7, down 0.18% on the day as on 13:19 IST on the NSE. The benchmark NIFTY is up around 0.86% on the day, quoting at 23972.3. The Sensex is at 76761.63, up 0.92%.Zydus Lifesciences Ltd has lost around 1.3% in last one month.Meanwhile, Nifty Pharma index of which Zydus Lifesciences Ltd is a constituent, has increased around 2.83% in last one month and is currently quoting at 25548.15, up 1.54% on the day. The volume in the stock stood at 3.8 lakh shares today, compared to the daily average of 13.4 lakh shares in last one month. The benchmark July futures contract for the stock is quoting at Rs 1108.1, down 0.12% on the day. Z...