Mumbai, Oct. 23 -- AU Small Finance Bank Ltd fell for a fifth straight session today. The stock is quoting at Rs 923.2, down 3.22% on the day as on 13:19 IST on the NSE. The benchmark NIFTY is down around 1.24% on the day, quoting at 22406.15. The Sensex is at 72534.84, down 0.98%.AU Small Finance Bank Ltd has eased around 7.69% in last one month.Meanwhile, Nifty Bank index of which AU Small Finance Bank Ltd is a constituent, has eased around 2.61% in last one month and is currently quoting at 54925.7, down 1.7% on the day. The volume in the stock stood at 11.55 lakh shares today, compared to the daily average of 17.94 lakh shares in last one month. The benchmark October futures contract for the stock is quoting at Rs 924, down 2.83% on t...