Mumbai, Oct. 1 -- Kotak Mahindra Bank Ltd is up for a third straight session today. The stock is quoting at Rs 422.35, up 1.28% on the day as on 12:49 IST on the NSE. The benchmark NIFTY is down around 1.07% on the day, quoting at 22378. The Sensex is at 71758.56, down 1%. Kotak Mahindra Bank Ltd has slipped around 0.27% in last one month. Meanwhile, Nifty Bank index of which Kotak Mahindra Bank Ltd is a constituent, has slipped around 4.68% in last one month and is currently quoting at 54633.05, down 0.25% on the day. The volume in the stock stood at 609.72 lakh shares today, compared to the daily average of 131.55 lakh shares in last one month. The benchmark October futures contract for the stock is quoting at Rs 421, up 0.98% on the da...