Mumbai, April 25 -- Tech Mahindra Ltd gained for a fifth straight session today. The stock is quoting at Rs 1454.9, up 0.67% on the day as on 12:44 IST on the NSE. The benchmark NIFTY is down around 1.22% on the day, quoting at 23951.05. The Sensex is at 78967.35, down 1.05%. Tech Mahindra Ltd has risen around 2.73% in last one month. Meanwhile, Nifty IT index of which Tech Mahindra Ltd is a constituent, has risen around 4.9% in last one month and is currently quoting at 35307.1, up 0.57% on the day. The volume in the stock stood at 63.1 lakh shares today, compared to the daily average of 25.03 lakh shares in last one month. The benchmark May futures contract for the stock is quoting at Rs 1453.7, up 0.08% on the day. Tech Mahindra Ltd is...