Mumbai, Sept. 18 -- Adani Green Energy Ltd gained for a third straight session today. The stock is quoting at Rs 1309.8, up 2.79% on the day as on 12:49 IST on the NSE. The benchmark NIFTY is up around 0.24% on the day, quoting at 23325.6. The Sensex is at 74505.4, up 0.26%. Adani Green Energy Ltd has gained around 1.3% in last one month. Meanwhile, Nifty Energy index of which Adani Green Energy Ltd is a constituent, has gained around 1.21% in last one month and is currently quoting at 37381.75, up 0.75% on the day. The volume in the stock stood at 9.03 lakh shares today, compared to the daily average of 14.46 lakh shares in last one month. The benchmark September futures contract for the stock is quoting at Rs 1315.3, up 3.36% on the day...