Mumbai, July 28 -- Mahanagar Gas Ltd dropped for a fifth straight session today. The stock is quoting at Rs 1375.5, down 0.31% on the day as on 13:19 IST on the NSE. The benchmark NIFTY is down around 0.56% on the day, quoting at 24697.3. The Sensex is at 80986.38, down 0.59%.Mahanagar Gas Ltd has lost around 7.26% in last one month.Meanwhile, Nifty Energy index of which Mahanagar Gas Ltd is a constituent, has eased around 4.13% in last one month and is currently quoting at 35250.5, down 0.55% on the day. The volume in the stock stood at 3.09 lakh shares today, compared to the daily average of 7.06 lakh shares in last one month. The benchmark July futures contract for the stock is quoting at Rs 1375.2, down 0.25% on the day. Mahanagar Gas...