Mumbai, Dec. 11 -- GAIL (India) Ltd gained for a third straight session today. The stock is quoting at Rs 169.9, up 1.12% on the day as on 12:49 IST on the NSE. The benchmark NIFTY is up around 0.53% on the day, quoting at 25894.8. The Sensex is at 84792.13, up 0.48%. GAIL (India) Ltd has slipped around 6.88% in last one month. Meanwhile, Nifty Energy index of which GAIL (India) Ltd is a constituent, has slipped around 4.13% in last one month and is currently quoting at 34635.25, up 0.45% on the day. The volume in the stock stood at 26.79 lakh shares today, compared to the daily average of 109.47 lakh shares in last one month. The benchmark December futures contract for the stock is quoting at Rs 170.25, up 0.9% on the day. GAIL (India) L...